20153845985

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{835739}}^1$

素因数の和:835817

約数の個数: 32

約数和(自身を含む): 30327333120

約数和(自身を除く): 10173487135

約数列:

[1, 5, 7, 13, 35, 53, 65, 91, 265, 371, 455, 689, 1855, 3445, 4823, 24115, 835739, 4178695, 5850173, 10864607, 29250865, 44294167, 54323035, 76052249, 221470835, 310059169, 380261245, 575824171, 1550295845, 2879120855, 4030769197, 20153845985]

約数ペア:

[(1, 20153845985), (5, 4030769197), (7, 2879120855), (13, 1550295845), (35, 575824171), (53, 380261245), (65, 310059169), (91, 221470835), (265, 76052249), (371, 54323035), (455, 44294167), (689, 29250865), (1855, 10864607), (3445, 5850173), (4823, 4178695), (24115, 835739)]