4125680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3967}}^1$

素因数の和:3993

約数の個数: 40

約数和(自身を含む): 10332672

約数和(自身を除く): 6206992

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 3967, 7934, 15868, 19835, 31736, 39670, 51571, 63472, 79340, 103142, 158680, 206284, 257855, 317360, 412568, 515710, 825136, 1031420, 2062840, 4125680]

約数ペア:

[(1, 4125680), (2, 2062840), (4, 1031420), (5, 825136), (8, 515710), (10, 412568), (13, 317360), (16, 257855), (20, 206284), (26, 158680), (40, 103142), (52, 79340), (65, 63472), (80, 51571), (104, 39670), (130, 31736), (208, 19835), (260, 15868), (520, 7934), (1040, 3967)]