42156920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{81071}}^1$

素因数の和:81095

約数の個数: 32

約数和(自身を含む): 102150720

約数和(自身を除く): 59993800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 81071, 162142, 324284, 405355, 648568, 810710, 1053923, 1621420, 2107846, 3242840, 4215692, 5269615, 8431384, 10539230, 21078460, 42156920]

約数ペア:

[(1, 42156920), (2, 21078460), (4, 10539230), (5, 8431384), (8, 5269615), (10, 4215692), (13, 3242840), (20, 2107846), (26, 1621420), (40, 1053923), (52, 810710), (65, 648568), (104, 405355), (130, 324284), (260, 162142), (520, 81071)]