2783198920

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{426871}}^1$

素因数の和:427045

約数の個数: 32

約数和(自身を含む): 6300630720

約数和(自身を除く): 3517431800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 426871, 853742, 1707484, 2134355, 3414968, 4268710, 8537420, 17074840, 69579973, 139159946, 278319892, 347899865, 556639784, 695799730, 1391599460, 2783198920]

約数ペア:

[(1, 2783198920), (2, 1391599460), (4, 695799730), (5, 556639784), (8, 347899865), (10, 278319892), (20, 139159946), (40, 69579973), (163, 17074840), (326, 8537420), (652, 4268710), (815, 3414968), (1304, 2134355), (1630, 1707484), (3260, 853742), (6520, 426871)]