991413904

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{1583}}^1\times {\mathrm{3011}}^1$

素因数の和:4615

約数の個数: 40

約数和(自身を含む): 2070617472

約数和(自身を除く): 1079203568

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 1583, 3011, 3166, 6022, 6332, 12044, 12664, 20579, 24088, 25328, 39143, 41158, 48176, 78286, 82316, 156572, 164632, 313144, 329264, 626288, 4766413, 9532826, 19065652, 38131304, 61963369, 76262608, 123926738, 247853476, 495706952, 991413904]

約数ペア:

[(1, 991413904), (2, 495706952), (4, 247853476), (8, 123926738), (13, 76262608), (16, 61963369), (26, 38131304), (52, 19065652), (104, 9532826), (208, 4766413), (1583, 626288), (3011, 329264), (3166, 313144), (6022, 164632), (6332, 156572), (12044, 82316), (12664, 78286), (20579, 48176), (24088, 41158), (25328, 39143)]