18488015

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{227}}^1$

素因数の和:431

約数の個数: 32

約数和(自身を含む): 27578880

約数和(自身を除く): 9090865

約数列:

[1, 5, 7, 13, 35, 65, 91, 179, 227, 455, 895, 1135, 1253, 1589, 2327, 2951, 6265, 7945, 11635, 14755, 16289, 20657, 40633, 81445, 103285, 203165, 284431, 528229, 1422155, 2641145, 3697603, 18488015]

約数ペア:

[(1, 18488015), (5, 3697603), (7, 2641145), (13, 1422155), (35, 528229), (65, 284431), (91, 203165), (179, 103285), (227, 81445), (455, 40633), (895, 20657), (1135, 16289), (1253, 14755), (1589, 11635), (2327, 7945), (2951, 6265)]