19718040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{4441}}^1$

素因数の和:4492

約数の個数: 64

約数和(自身を含む): 60766560

約数和(自身を除く): 41048520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 37, 40, 60, 74, 111, 120, 148, 185, 222, 296, 370, 444, 555, 740, 888, 1110, 1480, 2220, 4440, 4441, 8882, 13323, 17764, 22205, 26646, 35528, 44410, 53292, 66615, 88820, 106584, 133230, 164317, 177640, 266460, 328634, 492951, 532920, 657268, 821585, 985902, 1314536, 1643170, 1971804, 2464755, 3286340, 3943608, 4929510, 6572680, 9859020, 19718040]

約数ペア:

[(1, 19718040), (2, 9859020), (3, 6572680), (4, 4929510), (5, 3943608), (6, 3286340), (8, 2464755), (10, 1971804), (12, 1643170), (15, 1314536), (20, 985902), (24, 821585), (30, 657268), (37, 532920), (40, 492951), (60, 328634), (74, 266460), (111, 177640), (120, 164317), (148, 133230), (185, 106584), (222, 88820), (296, 66615), (370, 53292), (444, 44410), (555, 35528), (740, 26646), (888, 22205), (1110, 17764), (1480, 13323), (2220, 8882), (4440, 4441)]