15915640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{241}}^1$

素因数の和:392

約数の個数: 64

約数和(自身を含む): 39029760

約数和(自身を除く): 23114120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 127, 130, 241, 254, 260, 482, 508, 520, 635, 964, 1016, 1205, 1270, 1651, 1928, 2410, 2540, 3133, 3302, 4820, 5080, 6266, 6604, 8255, 9640, 12532, 13208, 15665, 16510, 25064, 30607, 31330, 33020, 61214, 62660, 66040, 122428, 125320, 153035, 244856, 306070, 397891, 612140, 795782, 1224280, 1591564, 1989455, 3183128, 3978910, 7957820, 15915640]

約数ペア:

[(1, 15915640), (2, 7957820), (4, 3978910), (5, 3183128), (8, 1989455), (10, 1591564), (13, 1224280), (20, 795782), (26, 612140), (40, 397891), (52, 306070), (65, 244856), (104, 153035), (127, 125320), (130, 122428), (241, 66040), (254, 62660), (260, 61214), (482, 33020), (508, 31330), (520, 30607), (635, 25064), (964, 16510), (1016, 15665), (1205, 13208), (1270, 12532), (1651, 9640), (1928, 8255), (2410, 6604), (2540, 6266), (3133, 5080), (3302, 4820)]