6647420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{691}}^1$

素因数の和:750

約数の個数: 48

約数和(自身を含む): 15462048

約数和(自身を除く): 8814628

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 52, 65, 74, 130, 148, 185, 260, 370, 481, 691, 740, 962, 1382, 1924, 2405, 2764, 3455, 4810, 6910, 8983, 9620, 13820, 17966, 25567, 35932, 44915, 51134, 89830, 102268, 127835, 179660, 255670, 332371, 511340, 664742, 1329484, 1661855, 3323710, 6647420]

約数ペア:

[(1, 6647420), (2, 3323710), (4, 1661855), (5, 1329484), (10, 664742), (13, 511340), (20, 332371), (26, 255670), (37, 179660), (52, 127835), (65, 102268), (74, 89830), (130, 51134), (148, 44915), (185, 35932), (260, 25567), (370, 17966), (481, 13820), (691, 9620), (740, 8983), (962, 6910), (1382, 4810), (1924, 3455), (2405, 2764)]