51218560

素因数分解:

$2^7\times 5^1\times {\mathrm{191}}^1\times {\mathrm{419}}^1$

素因数の和:629

約数の個数: 64

約数和(自身を含む): 123379200

約数和(自身を除く): 72160640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 191, 320, 382, 419, 640, 764, 838, 955, 1528, 1676, 1910, 2095, 3056, 3352, 3820, 4190, 6112, 6704, 7640, 8380, 12224, 13408, 15280, 16760, 24448, 26816, 30560, 33520, 53632, 61120, 67040, 80029, 122240, 134080, 160058, 268160, 320116, 400145, 640232, 800290, 1280464, 1600580, 2560928, 3201160, 5121856, 6402320, 10243712, 12804640, 25609280, 51218560]

約数ペア:

[(1, 51218560), (2, 25609280), (4, 12804640), (5, 10243712), (8, 6402320), (10, 5121856), (16, 3201160), (20, 2560928), (32, 1600580), (40, 1280464), (64, 800290), (80, 640232), (128, 400145), (160, 320116), (191, 268160), (320, 160058), (382, 134080), (419, 122240), (640, 80029), (764, 67040), (838, 61120), (955, 53632), (1528, 33520), (1676, 30560), (1910, 26816), (2095, 24448), (3056, 16760), (3352, 15280), (3820, 13408), (4190, 12224), (6112, 8380), (6704, 7640)]