12638600

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{4861}}^1$

素因数の和:4890

約数の個数: 48

約数和(自身を含む): 31651620

約数和(自身を除く): 19013020

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 1300, 2600, 4861, 9722, 19444, 24305, 38888, 48610, 63193, 97220, 121525, 126386, 194440, 243050, 252772, 315965, 486100, 505544, 631930, 972200, 1263860, 1579825, 2527720, 3159650, 6319300, 12638600]

約数ペア:

[(1, 12638600), (2, 6319300), (4, 3159650), (5, 2527720), (8, 1579825), (10, 1263860), (13, 972200), (20, 631930), (25, 505544), (26, 486100), (40, 315965), (50, 252772), (52, 243050), (65, 194440), (100, 126386), (104, 121525), (130, 97220), (200, 63193), (260, 48610), (325, 38888), (520, 24305), (650, 19444), (1300, 9722), (2600, 4861)]