8781890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1571}}^1$

素因数の和:1634

約数の個数: 32

約数和(自身を含む): 17430336

約数和(自身を除く): 8648446

約数列:

[1, 2, 5, 10, 13, 26, 43, 65, 86, 130, 215, 430, 559, 1118, 1571, 2795, 3142, 5590, 7855, 15710, 20423, 40846, 67553, 102115, 135106, 204230, 337765, 675530, 878189, 1756378, 4390945, 8781890]

約数ペア:

[(1, 8781890), (2, 4390945), (5, 1756378), (10, 878189), (13, 675530), (26, 337765), (43, 204230), (65, 135106), (86, 102115), (130, 67553), (215, 40846), (430, 20423), (559, 15710), (1118, 7855), (1571, 5590), (2795, 3142)]