919960

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{211}}^1$

素因数の和:331

約数の個数: 32

約数和(自身を含む): 2098800

約数和(自身を除く): 1178840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 211, 218, 422, 436, 545, 844, 872, 1055, 1090, 1688, 2110, 2180, 4220, 4360, 8440, 22999, 45998, 91996, 114995, 183992, 229990, 459980, 919960]

約数ペア:

[(1, 919960), (2, 459980), (4, 229990), (5, 183992), (8, 114995), (10, 91996), (20, 45998), (40, 22999), (109, 8440), (211, 4360), (218, 4220), (422, 2180), (436, 2110), (545, 1688), (844, 1090), (872, 1055)]