15172820

素因数分解:

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

素因数の和:169

約数の個数: 54

約数和(自身を含む): 35025102

約数和(自身を除く): 19852282

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 67, 130, 134, 169, 260, 268, 335, 338, 670, 676, 845, 871, 1340, 1690, 1742, 3380, 3484, 4355, 4489, 8710, 8978, 11323, 17420, 17956, 22445, 22646, 44890, 45292, 56615, 58357, 89780, 113230, 116714, 226460, 233428, 291785, 583570, 758641, 1167140, 1517282, 3034564, 3793205, 7586410, 15172820]

約数ペア:

[(1, 15172820), (2, 7586410), (4, 3793205), (5, 3034564), (10, 1517282), (13, 1167140), (20, 758641), (26, 583570), (52, 291785), (65, 233428), (67, 226460), (130, 116714), (134, 113230), (169, 89780), (260, 58357), (268, 56615), (335, 45292), (338, 44890), (670, 22646), (676, 22445), (845, 17956), (871, 17420), (1340, 11323), (1690, 8978), (1742, 8710), (3380, 4489), (3484, 4355)]