8747440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{647}}^1$

素因数の和:686

約数の個数: 60

約数和(自身を含む): 22056624

約数和(自身を除く): 13309184

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 169, 208, 260, 338, 520, 647, 676, 845, 1040, 1294, 1352, 1690, 2588, 2704, 3235, 3380, 5176, 6470, 6760, 8411, 10352, 12940, 13520, 16822, 25880, 33644, 42055, 51760, 67288, 84110, 109343, 134576, 168220, 218686, 336440, 437372, 546715, 672880, 874744, 1093430, 1749488, 2186860, 4373720, 8747440]

約数ペア:

[(1, 8747440), (2, 4373720), (4, 2186860), (5, 1749488), (8, 1093430), (10, 874744), (13, 672880), (16, 546715), (20, 437372), (26, 336440), (40, 218686), (52, 168220), (65, 134576), (80, 109343), (104, 84110), (130, 67288), (169, 51760), (208, 42055), (260, 33644), (338, 25880), (520, 16822), (647, 13520), (676, 12940), (845, 10352), (1040, 8411), (1294, 6760), (1352, 6470), (1690, 5176), (2588, 3380), (2704, 3235)]