55351780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{311}}^1\times {\mathrm{809}}^1$

素因数の和:1140

約数の個数: 48

約数和(自身を含む): 127370880

約数和(自身を除く): 72019100

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 311, 622, 809, 1244, 1555, 1618, 3110, 3236, 3421, 4045, 6220, 6842, 8090, 8899, 13684, 16180, 17105, 17798, 34210, 35596, 44495, 68420, 88990, 177980, 251599, 503198, 1006396, 1257995, 2515990, 2767589, 5031980, 5535178, 11070356, 13837945, 27675890, 55351780]

約数ペア:

[(1, 55351780), (2, 27675890), (4, 13837945), (5, 11070356), (10, 5535178), (11, 5031980), (20, 2767589), (22, 2515990), (44, 1257995), (55, 1006396), (110, 503198), (220, 251599), (311, 177980), (622, 88990), (809, 68420), (1244, 44495), (1555, 35596), (1618, 34210), (3110, 17798), (3236, 17105), (3421, 16180), (4045, 13684), (6220, 8899), (6842, 8090)]