30345640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{67}}^2$

素因数の和:171

約数の個数: 72

約数和(自身を含む): 75053790

約数和(自身を除く): 44708150

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 67, 104, 130, 134, 169, 260, 268, 335, 338, 520, 536, 670, 676, 845, 871, 1340, 1352, 1690, 1742, 2680, 3380, 3484, 4355, 4489, 6760, 6968, 8710, 8978, 11323, 17420, 17956, 22445, 22646, 34840, 35912, 44890, 45292, 56615, 58357, 89780, 90584, 113230, 116714, 179560, 226460, 233428, 291785, 452920, 466856, 583570, 758641, 1167140, 1517282, 2334280, 3034564, 3793205, 6069128, 7586410, 15172820, 30345640]

約数ペア:

[(1, 30345640), (2, 15172820), (4, 7586410), (5, 6069128), (8, 3793205), (10, 3034564), (13, 2334280), (20, 1517282), (26, 1167140), (40, 758641), (52, 583570), (65, 466856), (67, 452920), (104, 291785), (130, 233428), (134, 226460), (169, 179560), (260, 116714), (268, 113230), (335, 90584), (338, 89780), (520, 58357), (536, 56615), (670, 45292), (676, 44890), (845, 35912), (871, 34840), (1340, 22646), (1352, 22445), (1690, 17956), (1742, 17420), (2680, 11323), (3380, 8978), (3484, 8710), (4355, 6968), (4489, 6760)]