78451640

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{401}}^1$

素因数の和:552

約数の個数: 64

約数和(自身を含む): 182057760

約数和(自身を除く): 103606120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 73, 134, 146, 268, 292, 335, 365, 401, 536, 584, 670, 730, 802, 1340, 1460, 1604, 2005, 2680, 2920, 3208, 4010, 4891, 8020, 9782, 16040, 19564, 24455, 26867, 29273, 39128, 48910, 53734, 58546, 97820, 107468, 117092, 134335, 146365, 195640, 214936, 234184, 268670, 292730, 537340, 585460, 1074680, 1170920, 1961291, 3922582, 7845164, 9806455, 15690328, 19612910, 39225820, 78451640]

約数ペア:

[(1, 78451640), (2, 39225820), (4, 19612910), (5, 15690328), (8, 9806455), (10, 7845164), (20, 3922582), (40, 1961291), (67, 1170920), (73, 1074680), (134, 585460), (146, 537340), (268, 292730), (292, 268670), (335, 234184), (365, 214936), (401, 195640), (536, 146365), (584, 134335), (670, 117092), (730, 107468), (802, 97820), (1340, 58546), (1460, 53734), (1604, 48910), (2005, 39128), (2680, 29273), (2920, 26867), (3208, 24455), (4010, 19564), (4891, 16040), (8020, 9782)]