311129390

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{217573}}^1$

素因数の和:217604

約数の個数: 32

約数和(自身を含む): 657943776

約数和(自身を除く): 346814386

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 286, 715, 1430, 217573, 435146, 1087865, 2175730, 2393303, 2828449, 4786606, 5656898, 11966515, 14142245, 23933030, 28284490, 31112939, 62225878, 155564695, 311129390]

約数ペア:

[(1, 311129390), (2, 155564695), (5, 62225878), (10, 31112939), (11, 28284490), (13, 23933030), (22, 14142245), (26, 11966515), (55, 5656898), (65, 4786606), (110, 2828449), (130, 2393303), (143, 2175730), (286, 1087865), (715, 435146), (1430, 217573)]