18575820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3329}}^1$

素因数の和:3375

約数の個数: 72

約数和(自身を含む): 58181760

約数和(自身を除く): 39605940

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 279, 310, 372, 465, 558, 620, 930, 1116, 1395, 1860, 2790, 3329, 5580, 6658, 9987, 13316, 16645, 19974, 29961, 33290, 39948, 49935, 59922, 66580, 99870, 103199, 119844, 149805, 199740, 206398, 299610, 309597, 412796, 515995, 599220, 619194, 928791, 1031990, 1238388, 1547985, 1857582, 2063980, 3095970, 3715164, 4643955, 6191940, 9287910, 18575820]

約数ペア:

[(1, 18575820), (2, 9287910), (3, 6191940), (4, 4643955), (5, 3715164), (6, 3095970), (9, 2063980), (10, 1857582), (12, 1547985), (15, 1238388), (18, 1031990), (20, 928791), (30, 619194), (31, 599220), (36, 515995), (45, 412796), (60, 309597), (62, 299610), (90, 206398), (93, 199740), (124, 149805), (155, 119844), (180, 103199), (186, 99870), (279, 66580), (310, 59922), (372, 49935), (465, 39948), (558, 33290), (620, 29961), (930, 19974), (1116, 16645), (1395, 13316), (1860, 9987), (2790, 6658), (3329, 5580)]