131103640

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{53731}}^1$

素因数の和:53803

約数の個数: 32

約数和(自身を含む): 299824560

約数和(自身を除く): 168720920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 53731, 107462, 214924, 268655, 429848, 537310, 1074620, 2149240, 3277591, 6555182, 13110364, 16387955, 26220728, 32775910, 65551820, 131103640]

約数ペア:

[(1, 131103640), (2, 65551820), (4, 32775910), (5, 26220728), (8, 16387955), (10, 13110364), (20, 6555182), (40, 3277591), (61, 2149240), (122, 1074620), (244, 537310), (305, 429848), (488, 268655), (610, 214924), (1220, 107462), (2440, 53731)]