238424840

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{145381}}^1$

素因数の和:145433

約数の個数: 32

約数和(自身を含む): 549543960

約数和(自身を除く): 311119120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 145381, 290762, 581524, 726905, 1163048, 1453810, 2907620, 5815240, 5960621, 11921242, 23842484, 29803105, 47684968, 59606210, 119212420, 238424840]

約数ペア:

[(1, 238424840), (2, 119212420), (4, 59606210), (5, 47684968), (8, 29803105), (10, 23842484), (20, 11921242), (40, 5960621), (41, 5815240), (82, 2907620), (164, 1453810), (205, 1163048), (328, 726905), (410, 581524), (820, 290762), (1640, 145381)]