8396440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{241}}^1$

素因数の和:332

約数の個数: 64

約数和(自身を含む): 20734560

約数和(自身を除く): 12338120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 67, 104, 130, 134, 241, 260, 268, 335, 482, 520, 536, 670, 871, 964, 1205, 1340, 1742, 1928, 2410, 2680, 3133, 3484, 4355, 4820, 6266, 6968, 8710, 9640, 12532, 15665, 16147, 17420, 25064, 31330, 32294, 34840, 62660, 64588, 80735, 125320, 129176, 161470, 209911, 322940, 419822, 645880, 839644, 1049555, 1679288, 2099110, 4198220, 8396440]

約数ペア:

[(1, 8396440), (2, 4198220), (4, 2099110), (5, 1679288), (8, 1049555), (10, 839644), (13, 645880), (20, 419822), (26, 322940), (40, 209911), (52, 161470), (65, 129176), (67, 125320), (104, 80735), (130, 64588), (134, 62660), (241, 34840), (260, 32294), (268, 31330), (335, 25064), (482, 17420), (520, 16147), (536, 15665), (670, 12532), (871, 9640), (964, 8710), (1205, 6968), (1340, 6266), (1742, 4820), (1928, 4355), (2410, 3484), (2680, 3133)]