20867808

素因数分解:

$2^5\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{727}}^1$

素因数の和:776

約数の個数: 96

約数和(自身を含む): 61641216

約数和(自身を除く): 40773408

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 23, 24, 26, 32, 39, 46, 48, 52, 69, 78, 92, 96, 104, 138, 156, 184, 208, 276, 299, 312, 368, 416, 552, 598, 624, 727, 736, 897, 1104, 1196, 1248, 1454, 1794, 2181, 2208, 2392, 2908, 3588, 4362, 4784, 5816, 7176, 8724, 9451, 9568, 11632, 14352, 16721, 17448, 18902, 23264, 28353, 28704, 33442, 34896, 37804, 50163, 56706, 66884, 69792, 75608, 100326, 113412, 133768, 151216, 200652, 217373, 226824, 267536, 302432, 401304, 434746, 453648, 535072, 652119, 802608, 869492, 907296, 1304238, 1605216, 1738984, 2608476, 3477968, 5216952, 6955936, 10433904, 20867808]

約数ペア:

[(1, 20867808), (2, 10433904), (3, 6955936), (4, 5216952), (6, 3477968), (8, 2608476), (12, 1738984), (13, 1605216), (16, 1304238), (23, 907296), (24, 869492), (26, 802608), (32, 652119), (39, 535072), (46, 453648), (48, 434746), (52, 401304), (69, 302432), (78, 267536), (92, 226824), (96, 217373), (104, 200652), (138, 151216), (156, 133768), (184, 113412), (208, 100326), (276, 75608), (299, 69792), (312, 66884), (368, 56706), (416, 50163), (552, 37804), (598, 34896), (624, 33442), (727, 28704), (736, 28353), (897, 23264), (1104, 18902), (1196, 17448), (1248, 16721), (1454, 14352), (1794, 11632), (2181, 9568), (2208, 9451), (2392, 8724), (2908, 7176), (3588, 5816), (4362, 4784)]