172475420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{9901}}^1$

素因数の和:9990

約数の個数: 48

約数和(自身を含む): 395921568

約数和(自身を除く): 223446148

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 67, 130, 134, 260, 268, 335, 670, 871, 1340, 1742, 3484, 4355, 8710, 9901, 17420, 19802, 39604, 49505, 99010, 128713, 198020, 257426, 514852, 643565, 663367, 1287130, 1326734, 2574260, 2653468, 3316835, 6633670, 8623771, 13267340, 17247542, 34495084, 43118855, 86237710, 172475420]

約数ペア:

[(1, 172475420), (2, 86237710), (4, 43118855), (5, 34495084), (10, 17247542), (13, 13267340), (20, 8623771), (26, 6633670), (52, 3316835), (65, 2653468), (67, 2574260), (130, 1326734), (134, 1287130), (260, 663367), (268, 643565), (335, 514852), (670, 257426), (871, 198020), (1340, 128713), (1742, 99010), (3484, 49505), (4355, 39604), (8710, 19802), (9901, 17420)]