18656730

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{743}}^1$

素因数の和:793

約数の個数: 80

約数和(自身を含む): 51853824

約数和(自身を除く): 33197094

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 31, 45, 54, 62, 81, 90, 93, 135, 155, 162, 186, 270, 279, 310, 405, 465, 558, 743, 810, 837, 930, 1395, 1486, 1674, 2229, 2511, 2790, 3715, 4185, 4458, 5022, 6687, 7430, 8370, 11145, 12555, 13374, 20061, 22290, 23033, 25110, 33435, 40122, 46066, 60183, 66870, 69099, 100305, 115165, 120366, 138198, 200610, 207297, 230330, 300915, 345495, 414594, 601830, 621891, 690990, 1036485, 1243782, 1865673, 2072970, 3109455, 3731346, 6218910, 9328365, 18656730]

約数ペア:

[(1, 18656730), (2, 9328365), (3, 6218910), (5, 3731346), (6, 3109455), (9, 2072970), (10, 1865673), (15, 1243782), (18, 1036485), (27, 690990), (30, 621891), (31, 601830), (45, 414594), (54, 345495), (62, 300915), (81, 230330), (90, 207297), (93, 200610), (135, 138198), (155, 120366), (162, 115165), (186, 100305), (270, 69099), (279, 66870), (310, 60183), (405, 46066), (465, 40122), (558, 33435), (743, 25110), (810, 23033), (837, 22290), (930, 20061), (1395, 13374), (1486, 12555), (1674, 11145), (2229, 8370), (2511, 7430), (2790, 6687), (3715, 5022), (4185, 4458)]