28609140

素因数分解:

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

素因数の和:326

約数の個数: 144

約数和(自身を含む): 96066432

約数和(自身を除く): 67457292

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 37, 42, 49, 60, 70, 74, 84, 98, 105, 111, 140, 147, 148, 185, 196, 210, 222, 245, 259, 263, 294, 370, 420, 444, 490, 518, 526, 555, 588, 735, 740, 777, 789, 980, 1036, 1052, 1110, 1295, 1315, 1470, 1554, 1578, 1813, 1841, 2220, 2590, 2630, 2940, 3108, 3156, 3626, 3682, 3885, 3945, 5180, 5260, 5439, 5523, 7252, 7364, 7770, 7890, 9065, 9205, 9731, 10878, 11046, 12887, 15540, 15780, 18130, 18410, 19462, 21756, 22092, 25774, 27195, 27615, 29193, 36260, 36820, 38661, 38924, 48655, 51548, 54390, 55230, 58386, 64435, 68117, 77322, 97310, 108780, 110460, 116772, 128870, 136234, 145965, 154644, 193305, 194620, 204351, 257740, 272468, 291930, 340585, 386610, 408702, 476819, 583860, 681170, 773220, 817404, 953638, 1021755, 1362340, 1430457, 1907276, 2043510, 2384095, 2860914, 4087020, 4768190, 5721828, 7152285, 9536380, 14304570, 28609140]

約数ペア:

[(1, 28609140), (2, 14304570), (3, 9536380), (4, 7152285), (5, 5721828), (6, 4768190), (7, 4087020), (10, 2860914), (12, 2384095), (14, 2043510), (15, 1907276), (20, 1430457), (21, 1362340), (28, 1021755), (30, 953638), (35, 817404), (37, 773220), (42, 681170), (49, 583860), (60, 476819), (70, 408702), (74, 386610), (84, 340585), (98, 291930), (105, 272468), (111, 257740), (140, 204351), (147, 194620), (148, 193305), (185, 154644), (196, 145965), (210, 136234), (222, 128870), (245, 116772), (259, 110460), (263, 108780), (294, 97310), (370, 77322), (420, 68117), (444, 64435), (490, 58386), (518, 55230), (526, 54390), (555, 51548), (588, 48655), (735, 38924), (740, 38661), (777, 36820), (789, 36260), (980, 29193), (1036, 27615), (1052, 27195), (1110, 25774), (1295, 22092), (1315, 21756), (1470, 19462), (1554, 18410), (1578, 18130), (1813, 15780), (1841, 15540), (2220, 12887), (2590, 11046), (2630, 10878), (2940, 9731), (3108, 9205), (3156, 9065), (3626, 7890), (3682, 7770), (3885, 7364), (3945, 7252), (5180, 5523), (5260, 5439)]