1285751350

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{63809}}^1$

素因数の和:63865

約数の個数: 48

約数和(自身を含む): 2658579840

約数和(自身を除く): 1372828490

約数列:

[1, 2, 5, 10, 13, 25, 26, 31, 50, 62, 65, 130, 155, 310, 325, 403, 650, 775, 806, 1550, 2015, 4030, 10075, 20150, 63809, 127618, 319045, 638090, 829517, 1595225, 1659034, 1978079, 3190450, 3956158, 4147585, 8295170, 9890395, 19780790, 20737925, 25715027, 41475850, 49451975, 51430054, 98903950, 128575135, 257150270, 642875675, 1285751350]

約数ペア:

[(1, 1285751350), (2, 642875675), (5, 257150270), (10, 128575135), (13, 98903950), (25, 51430054), (26, 49451975), (31, 41475850), (50, 25715027), (62, 20737925), (65, 19780790), (130, 9890395), (155, 8295170), (310, 4147585), (325, 3956158), (403, 3190450), (650, 1978079), (775, 1659034), (806, 1595225), (1550, 829517), (2015, 638090), (4030, 319045), (10075, 127618), (20150, 63809)]