8206640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{607}}^1$

素因数の和:646

約数の個数: 60

約数和(自身を含む): 20695104

約数和(自身を除く): 12488464

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 169, 208, 260, 338, 520, 607, 676, 845, 1040, 1214, 1352, 1690, 2428, 2704, 3035, 3380, 4856, 6070, 6760, 7891, 9712, 12140, 13520, 15782, 24280, 31564, 39455, 48560, 63128, 78910, 102583, 126256, 157820, 205166, 315640, 410332, 512915, 631280, 820664, 1025830, 1641328, 2051660, 4103320, 8206640]

約数ペア:

[(1, 8206640), (2, 4103320), (4, 2051660), (5, 1641328), (8, 1025830), (10, 820664), (13, 631280), (16, 512915), (20, 410332), (26, 315640), (40, 205166), (52, 157820), (65, 126256), (80, 102583), (104, 78910), (130, 63128), (169, 48560), (208, 39455), (260, 31564), (338, 24280), (520, 15782), (607, 13520), (676, 12140), (845, 9712), (1040, 7891), (1214, 6760), (1352, 6070), (1690, 4856), (2428, 3380), (2704, 3035)]