40495780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{11981}}^1$

素因数の和:12016

約数の個数: 36

約数和(自身を含む): 92093652

約数和(自身を除く): 51597872

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 11981, 23962, 47924, 59905, 119810, 155753, 239620, 311506, 623012, 778765, 1557530, 2024789, 3115060, 4049578, 8099156, 10123945, 20247890, 40495780]

約数ペア:

[(1, 40495780), (2, 20247890), (4, 10123945), (5, 8099156), (10, 4049578), (13, 3115060), (20, 2024789), (26, 1557530), (52, 778765), (65, 623012), (130, 311506), (169, 239620), (260, 155753), (338, 119810), (676, 59905), (845, 47924), (1690, 23962), (3380, 11981)]