18391590

素因数分解:

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

素因数の和:323

約数の個数: 128

約数和(自身を含む): 57784320

約数和(自身を除く): 39392730

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 37, 42, 45, 54, 63, 70, 74, 90, 105, 111, 126, 135, 185, 189, 210, 222, 259, 263, 270, 315, 333, 370, 378, 518, 526, 555, 630, 666, 777, 789, 945, 999, 1110, 1295, 1315, 1554, 1578, 1665, 1841, 1890, 1998, 2331, 2367, 2590, 2630, 3330, 3682, 3885, 3945, 4662, 4734, 4995, 5523, 6993, 7101, 7770, 7890, 9205, 9731, 9990, 11046, 11655, 11835, 13986, 14202, 16569, 18410, 19462, 23310, 23670, 27615, 29193, 33138, 34965, 35505, 48655, 49707, 55230, 58386, 68117, 69930, 71010, 82845, 87579, 97310, 99414, 136234, 145965, 165690, 175158, 204351, 248535, 262737, 291930, 340585, 408702, 437895, 497070, 525474, 613053, 681170, 875790, 1021755, 1226106, 1313685, 1839159, 2043510, 2627370, 3065265, 3678318, 6130530, 9195795, 18391590]

約数ペア:

[(1, 18391590), (2, 9195795), (3, 6130530), (5, 3678318), (6, 3065265), (7, 2627370), (9, 2043510), (10, 1839159), (14, 1313685), (15, 1226106), (18, 1021755), (21, 875790), (27, 681170), (30, 613053), (35, 525474), (37, 497070), (42, 437895), (45, 408702), (54, 340585), (63, 291930), (70, 262737), (74, 248535), (90, 204351), (105, 175158), (111, 165690), (126, 145965), (135, 136234), (185, 99414), (189, 97310), (210, 87579), (222, 82845), (259, 71010), (263, 69930), (270, 68117), (315, 58386), (333, 55230), (370, 49707), (378, 48655), (518, 35505), (526, 34965), (555, 33138), (630, 29193), (666, 27615), (777, 23670), (789, 23310), (945, 19462), (999, 18410), (1110, 16569), (1295, 14202), (1315, 13986), (1554, 11835), (1578, 11655), (1665, 11046), (1841, 9990), (1890, 9731), (1998, 9205), (2331, 7890), (2367, 7770), (2590, 7101), (2630, 6993), (3330, 5523), (3682, 4995), (3885, 4734), (3945, 4662)]