1909814840

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{782711}}^1$

素因数の和:782783

約数の個数: 32

約数和(自身を含む): 4367532960

約数和(自身を除く): 2457718120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 782711, 1565422, 3130844, 3913555, 6261688, 7827110, 15654220, 31308440, 47745371, 95490742, 190981484, 238726855, 381962968, 477453710, 954907420, 1909814840]

約数ペア:

[(1, 1909814840), (2, 954907420), (4, 477453710), (5, 381962968), (8, 238726855), (10, 190981484), (20, 95490742), (40, 47745371), (61, 31308440), (122, 15654220), (244, 7827110), (305, 6261688), (488, 3913555), (610, 3130844), (1220, 1565422), (2440, 782711)]