1266980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{443}}^1$

素因数の和:476

約数の個数: 48

約数和(自身を含む): 3132864

約数和(自身を除く): 1865884

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 443, 572, 715, 886, 1430, 1772, 2215, 2860, 4430, 4873, 5759, 8860, 9746, 11518, 19492, 23036, 24365, 28795, 48730, 57590, 63349, 97460, 115180, 126698, 253396, 316745, 633490, 1266980]

約数ペア:

[(1, 1266980), (2, 633490), (4, 316745), (5, 253396), (10, 126698), (11, 115180), (13, 97460), (20, 63349), (22, 57590), (26, 48730), (44, 28795), (52, 24365), (55, 23036), (65, 19492), (110, 11518), (130, 9746), (143, 8860), (220, 5759), (260, 4873), (286, 4430), (443, 2860), (572, 2215), (715, 1772), (886, 1430)]