257482260

素因数分解:

$2^2\times 3^3\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{263}}^1$

素因数の和:332

約数の個数: 288

約数和(自身を含む): 960664320

約数和(自身を除く): 703182060

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 37, 42, 45, 49, 54, 60, 63, 70, 74, 84, 90, 98, 105, 108, 111, 126, 135, 140, 147, 148, 180, 185, 189, 196, 210, 222, 245, 252, 259, 263, 270, 294, 315, 333, 370, 378, 420, 441, 444, 490, 518, 526, 540, 555, 588, 630, 666, 735, 740, 756, 777, 789, 882, 945, 980, 999, 1036, 1052, 1110, 1260, 1295, 1315, 1323, 1332, 1470, 1554, 1578, 1665, 1764, 1813, 1841, 1890, 1998, 2205, 2220, 2331, 2367, 2590, 2630, 2646, 2940, 3108, 3156, 3330, 3626, 3682, 3780, 3885, 3945, 3996, 4410, 4662, 4734, 4995, 5180, 5260, 5292, 5439, 5523, 6615, 6660, 6993, 7101, 7252, 7364, 7770, 7890, 8820, 9065, 9205, 9324, 9468, 9731, 9990, 10878, 11046, 11655, 11835, 12887, 13230, 13986, 14202, 15540, 15780, 16317, 16569, 18130, 18410, 19462, 19980, 21756, 22092, 23310, 23670, 25774, 26460, 27195, 27615, 27972, 28404, 29193, 32634, 33138, 34965, 35505, 36260, 36820, 38661, 38924, 46620, 47340, 48655, 48951, 49707, 51548, 54390, 55230, 58386, 64435, 65268, 66276, 68117, 69930, 71010, 77322, 81585, 82845, 87579, 97310, 97902, 99414, 108780, 110460, 115983, 116772, 128870, 136234, 139860, 142020, 145965, 154644, 163170, 165690, 175158, 193305, 194620, 195804, 198828, 204351, 231966, 244755, 248535, 257740, 262737, 272468, 291930, 326340, 331380, 340585, 347949, 350316, 386610, 408702, 437895, 463932, 476819, 489510, 497070, 525474, 579915, 583860, 613053, 681170, 695898, 773220, 817404, 875790, 953638, 979020, 994140, 1021755, 1050948, 1159830, 1226106, 1313685, 1362340, 1391796, 1430457, 1739745, 1751580, 1839159, 1907276, 2043510, 2319660, 2384095, 2452212, 2627370, 2860914, 3065265, 3479490, 3678318, 4087020, 4291371, 4768190, 5254740, 5721828, 6130530, 6958980, 7152285, 7356636, 8582742, 9195795, 9536380, 12261060, 12874113, 14304570, 17165484, 18391590, 21456855, 25748226, 28609140, 36783180, 42913710, 51496452, 64370565, 85827420, 128741130, 257482260]

約数ペア:

[(1, 257482260), (2, 128741130), (3, 85827420), (4, 64370565), (5, 51496452), (6, 42913710), (7, 36783180), (9, 28609140), (10, 25748226), (12, 21456855), (14, 18391590), (15, 17165484), (18, 14304570), (20, 12874113), (21, 12261060), (27, 9536380), (28, 9195795), (30, 8582742), (35, 7356636), (36, 7152285), (37, 6958980), (42, 6130530), (45, 5721828), (49, 5254740), (54, 4768190), (60, 4291371), (63, 4087020), (70, 3678318), (74, 3479490), (84, 3065265), (90, 2860914), (98, 2627370), (105, 2452212), (108, 2384095), (111, 2319660), (126, 2043510), (135, 1907276), (140, 1839159), (147, 1751580), (148, 1739745), (180, 1430457), (185, 1391796), (189, 1362340), (196, 1313685), (210, 1226106), (222, 1159830), (245, 1050948), (252, 1021755), (259, 994140), (263, 979020), (270, 953638), (294, 875790), (315, 817404), (333, 773220), (370, 695898), (378, 681170), (420, 613053), (441, 583860), (444, 579915), (490, 525474), (518, 497070), (526, 489510), (540, 476819), (555, 463932), (588, 437895), (630, 408702), (666, 386610), (735, 350316), (740, 347949), (756, 340585), (777, 331380), (789, 326340), (882, 291930), (945, 272468), (980, 262737), (999, 257740), (1036, 248535), (1052, 244755), (1110, 231966), (1260, 204351), (1295, 198828), (1315, 195804), (1323, 194620), (1332, 193305), (1470, 175158), (1554, 165690), (1578, 163170), (1665, 154644), (1764, 145965), (1813, 142020), (1841, 139860), (1890, 136234), (1998, 128870), (2205, 116772), (2220, 115983), (2331, 110460), (2367, 108780), (2590, 99414), (2630, 97902), (2646, 97310), (2940, 87579), (3108, 82845), (3156, 81585), (3330, 77322), (3626, 71010), (3682, 69930), (3780, 68117), (3885, 66276), (3945, 65268), (3996, 64435), (4410, 58386), (4662, 55230), (4734, 54390), (4995, 51548), (5180, 49707), (5260, 48951), (5292, 48655), (5439, 47340), (5523, 46620), (6615, 38924), (6660, 38661), (6993, 36820), (7101, 36260), (7252, 35505), (7364, 34965), (7770, 33138), (7890, 32634), (8820, 29193), (9065, 28404), (9205, 27972), (9324, 27615), (9468, 27195), (9731, 26460), (9990, 25774), (10878, 23670), (11046, 23310), (11655, 22092), (11835, 21756), (12887, 19980), (13230, 19462), (13986, 18410), (14202, 18130), (15540, 16569), (15780, 16317)]