18120830

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19913}}^1$

素因数の和:19940

約数の個数: 32

約数和(自身を含む): 40146624

約数和(自身を除く): 22025794

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 19913, 39826, 99565, 139391, 199130, 258869, 278782, 517738, 696955, 1294345, 1393910, 1812083, 2588690, 3624166, 9060415, 18120830]

約数ペア:

[(1, 18120830), (2, 9060415), (5, 3624166), (7, 2588690), (10, 1812083), (13, 1393910), (14, 1294345), (26, 696955), (35, 517738), (65, 278782), (70, 258869), (91, 199130), (130, 139391), (182, 99565), (455, 39826), (910, 19913)]