51158980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{701}}^1$

素因数の和:840

約数の個数: 48

約数和(自身を含む): 111449520

約数和(自身を除く): 60290540

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 89, 164, 178, 205, 356, 410, 445, 701, 820, 890, 1402, 1780, 2804, 3505, 3649, 7010, 7298, 14020, 14596, 18245, 28741, 36490, 57482, 62389, 72980, 114964, 124778, 143705, 249556, 287410, 311945, 574820, 623890, 1247780, 2557949, 5115898, 10231796, 12789745, 25579490, 51158980]

約数ペア:

[(1, 51158980), (2, 25579490), (4, 12789745), (5, 10231796), (10, 5115898), (20, 2557949), (41, 1247780), (82, 623890), (89, 574820), (164, 311945), (178, 287410), (205, 249556), (356, 143705), (410, 124778), (445, 114964), (701, 72980), (820, 62389), (890, 57482), (1402, 36490), (1780, 28741), (2804, 18245), (3505, 14596), (3649, 14020), (7010, 7298)]