688344958

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{18617}}^1$

素因数の和:18784

約数の個数: 32

約数和(自身を含む): 1251129600

約数和(自身を除く): 562784642

約数列:

[1, 2, 7, 14, 19, 38, 133, 139, 266, 278, 973, 1946, 2641, 5282, 18487, 18617, 36974, 37234, 130319, 260638, 353723, 707446, 2476061, 2587763, 4952122, 5175526, 18114341, 36228682, 49167497, 98334994, 344172479, 688344958]

約数ペア:

[(1, 688344958), (2, 344172479), (7, 98334994), (14, 49167497), (19, 36228682), (38, 18114341), (133, 5175526), (139, 4952122), (266, 2587763), (278, 2476061), (973, 707446), (1946, 353723), (2641, 260638), (5282, 130319), (18487, 37234), (18617, 36974)]