440990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1$

素因数の和:248

約数の個数: 32

約数和(自身を含む): 915840

約数和(自身を除く): 474850

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 190, 209, 211, 418, 422, 1045, 1055, 2090, 2110, 2321, 4009, 4642, 8018, 11605, 20045, 23210, 40090, 44099, 88198, 220495, 440990]

約数ペア:

[(1, 440990), (2, 220495), (5, 88198), (10, 44099), (11, 40090), (19, 23210), (22, 20045), (38, 11605), (55, 8018), (95, 4642), (110, 4009), (190, 2321), (209, 2110), (211, 2090), (418, 1055), (422, 1045)]