640704528

素因数分解:

$2^4\times 3^2\times {\mathrm{31}}^1\times {\mathrm{143527}}^1$

素因数の和:143572

約数の個数: 60

約数和(自身を含む): 1850937088

約数和(自身を除く): 1210232560

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 31, 36, 48, 62, 72, 93, 124, 144, 186, 248, 279, 372, 496, 558, 744, 1116, 1488, 2232, 4464, 143527, 287054, 430581, 574108, 861162, 1148216, 1291743, 1722324, 2296432, 2583486, 3444648, 4449337, 5166972, 6889296, 8898674, 10333944, 13348011, 17797348, 20667888, 26696022, 35594696, 40044033, 53392044, 71189392, 80088066, 106784088, 160176132, 213568176, 320352264, 640704528]

約数ペア:

[(1, 640704528), (2, 320352264), (3, 213568176), (4, 160176132), (6, 106784088), (8, 80088066), (9, 71189392), (12, 53392044), (16, 40044033), (18, 35594696), (24, 26696022), (31, 20667888), (36, 17797348), (48, 13348011), (62, 10333944), (72, 8898674), (93, 6889296), (124, 5166972), (144, 4449337), (186, 3444648), (248, 2583486), (279, 2296432), (372, 1722324), (496, 1291743), (558, 1148216), (744, 861162), (1116, 574108), (1488, 430581), (2232, 287054), (4464, 143527)]