8207680

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1973}}^1$

素因数の和:2003

約数の個数: 56

約数和(自身を含む): 21058632

約数和(自身を除く): 12850952

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 1973, 2080, 3946, 4160, 7892, 9865, 15784, 19730, 25649, 31568, 39460, 51298, 63136, 78920, 102596, 126272, 128245, 157840, 205192, 256490, 315680, 410384, 512980, 631360, 820768, 1025960, 1641536, 2051920, 4103840, 8207680]

約数ペア:

[(1, 8207680), (2, 4103840), (4, 2051920), (5, 1641536), (8, 1025960), (10, 820768), (13, 631360), (16, 512980), (20, 410384), (26, 315680), (32, 256490), (40, 205192), (52, 157840), (64, 128245), (65, 126272), (80, 102596), (104, 78920), (130, 63136), (160, 51298), (208, 39460), (260, 31568), (320, 25649), (416, 19730), (520, 15784), (832, 9865), (1040, 7892), (1973, 4160), (2080, 3946)]