18180890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19979}}^1$

素因数の和:20006

約数の個数: 32

約数和(自身を含む): 40279680

約数和(自身を除く): 22098790

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 19979, 39958, 99895, 139853, 199790, 259727, 279706, 519454, 699265, 1298635, 1398530, 1818089, 2597270, 3636178, 9090445, 18180890]

約数ペア:

[(1, 18180890), (2, 9090445), (5, 3636178), (7, 2597270), (10, 1818089), (13, 1398530), (14, 1298635), (26, 699265), (35, 519454), (65, 279706), (70, 259727), (91, 199790), (130, 139853), (182, 99895), (455, 39958), (910, 19979)]