18701680

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{7541}}^1$

素因数の和:7585

約数の個数: 40

約数和(自身を含む): 44889984

約数和(自身を除く): 26188304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 7541, 15082, 30164, 37705, 60328, 75410, 120656, 150820, 233771, 301640, 467542, 603280, 935084, 1168855, 1870168, 2337710, 3740336, 4675420, 9350840, 18701680]

約数ペア:

[(1, 18701680), (2, 9350840), (4, 4675420), (5, 3740336), (8, 2337710), (10, 1870168), (16, 1168855), (20, 935084), (31, 603280), (40, 467542), (62, 301640), (80, 233771), (124, 150820), (155, 120656), (248, 75410), (310, 60328), (496, 37705), (620, 30164), (1240, 15082), (2480, 7541)]