18810090

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{233}}^1$

素因数の和:285

約数の個数: 128

約数和(自身を含む): 56609280

約数和(自身を除く): 37799190

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 23, 26, 27, 30, 39, 45, 46, 54, 65, 69, 78, 90, 115, 117, 130, 135, 138, 195, 207, 230, 233, 234, 270, 299, 345, 351, 390, 414, 466, 585, 598, 621, 690, 699, 702, 897, 1035, 1165, 1170, 1242, 1398, 1495, 1755, 1794, 2070, 2097, 2330, 2691, 2990, 3029, 3105, 3495, 3510, 4194, 4485, 5359, 5382, 6058, 6210, 6291, 6990, 8073, 8970, 9087, 10485, 10718, 12582, 13455, 15145, 16077, 16146, 18174, 20970, 26795, 26910, 27261, 30290, 31455, 32154, 40365, 45435, 48231, 53590, 54522, 62910, 69667, 80385, 80730, 81783, 90870, 96462, 136305, 139334, 144693, 160770, 163566, 209001, 241155, 272610, 289386, 348335, 408915, 418002, 482310, 627003, 696670, 723465, 817830, 1045005, 1254006, 1446930, 1881009, 2090010, 3135015, 3762018, 6270030, 9405045, 18810090]

約数ペア:

[(1, 18810090), (2, 9405045), (3, 6270030), (5, 3762018), (6, 3135015), (9, 2090010), (10, 1881009), (13, 1446930), (15, 1254006), (18, 1045005), (23, 817830), (26, 723465), (27, 696670), (30, 627003), (39, 482310), (45, 418002), (46, 408915), (54, 348335), (65, 289386), (69, 272610), (78, 241155), (90, 209001), (115, 163566), (117, 160770), (130, 144693), (135, 139334), (138, 136305), (195, 96462), (207, 90870), (230, 81783), (233, 80730), (234, 80385), (270, 69667), (299, 62910), (345, 54522), (351, 53590), (390, 48231), (414, 45435), (466, 40365), (585, 32154), (598, 31455), (621, 30290), (690, 27261), (699, 26910), (702, 26795), (897, 20970), (1035, 18174), (1165, 16146), (1170, 16077), (1242, 15145), (1398, 13455), (1495, 12582), (1755, 10718), (1794, 10485), (2070, 9087), (2097, 8970), (2330, 8073), (2691, 6990), (2990, 6291), (3029, 6210), (3105, 6058), (3495, 5382), (3510, 5359), (4194, 4485)]