85687760

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{10399}}^1$

素因数の和:10515

約数の個数: 40

約数和(自身を含む): 201177600

約数和(自身を除く): 115489840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 412, 515, 824, 1030, 1648, 2060, 4120, 8240, 10399, 20798, 41596, 51995, 83192, 103990, 166384, 207980, 415960, 831920, 1071097, 2142194, 4284388, 5355485, 8568776, 10710970, 17137552, 21421940, 42843880, 85687760]

約数ペア:

[(1, 85687760), (2, 42843880), (4, 21421940), (5, 17137552), (8, 10710970), (10, 8568776), (16, 5355485), (20, 4284388), (40, 2142194), (80, 1071097), (103, 831920), (206, 415960), (412, 207980), (515, 166384), (824, 103990), (1030, 83192), (1648, 51995), (2060, 41596), (4120, 20798), (8240, 10399)]