15031640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{211}}^1$

素因数の和:372

約数の個数: 64

約数和(自身を含む): 36862560

約数和(自身を除く): 21830920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 137, 211, 260, 274, 422, 520, 548, 685, 844, 1055, 1096, 1370, 1688, 1781, 2110, 2740, 2743, 3562, 4220, 5480, 5486, 7124, 8440, 8905, 10972, 13715, 14248, 17810, 21944, 27430, 28907, 35620, 54860, 57814, 71240, 109720, 115628, 144535, 231256, 289070, 375791, 578140, 751582, 1156280, 1503164, 1878955, 3006328, 3757910, 7515820, 15031640]

約数ペア:

[(1, 15031640), (2, 7515820), (4, 3757910), (5, 3006328), (8, 1878955), (10, 1503164), (13, 1156280), (20, 751582), (26, 578140), (40, 375791), (52, 289070), (65, 231256), (104, 144535), (130, 115628), (137, 109720), (211, 71240), (260, 57814), (274, 54860), (422, 35620), (520, 28907), (548, 27430), (685, 21944), (844, 17810), (1055, 14248), (1096, 13715), (1370, 10972), (1688, 8905), (1781, 8440), (2110, 7124), (2740, 5486), (2743, 5480), (3562, 4220)]