51887240

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{311}}^1$

素因数の和:462

約数の個数: 64

約数和(自身を含む): 121080960

約数和(自身を除く): 69193720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 97, 172, 194, 215, 311, 344, 388, 430, 485, 622, 776, 860, 970, 1244, 1555, 1720, 1940, 2488, 3110, 3880, 4171, 6220, 8342, 12440, 13373, 16684, 20855, 26746, 30167, 33368, 41710, 53492, 60334, 66865, 83420, 106984, 120668, 133730, 150835, 166840, 241336, 267460, 301670, 534920, 603340, 1206680, 1297181, 2594362, 5188724, 6485905, 10377448, 12971810, 25943620, 51887240]

約数ペア:

[(1, 51887240), (2, 25943620), (4, 12971810), (5, 10377448), (8, 6485905), (10, 5188724), (20, 2594362), (40, 1297181), (43, 1206680), (86, 603340), (97, 534920), (172, 301670), (194, 267460), (215, 241336), (311, 166840), (344, 150835), (388, 133730), (430, 120668), (485, 106984), (622, 83420), (776, 66865), (860, 60334), (970, 53492), (1244, 41710), (1555, 33368), (1720, 30167), (1940, 26746), (2488, 20855), (3110, 16684), (3880, 13373), (4171, 12440), (6220, 8342)]