31432940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{20411}}^1$

素因数の和:20438

約数の個数: 48

約数和(自身を含む): 82301184

約数和(自身を除く): 50868244

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 20411, 40822, 81644, 102055, 142877, 204110, 224521, 285754, 408220, 449042, 571508, 714385, 898084, 1122605, 1428770, 1571647, 2245210, 2857540, 3143294, 4490420, 6286588, 7858235, 15716470, 31432940]

約数ペア:

[(1, 31432940), (2, 15716470), (4, 7858235), (5, 6286588), (7, 4490420), (10, 3143294), (11, 2857540), (14, 2245210), (20, 1571647), (22, 1428770), (28, 1122605), (35, 898084), (44, 714385), (55, 571508), (70, 449042), (77, 408220), (110, 285754), (140, 224521), (154, 204110), (220, 142877), (308, 102055), (385, 81644), (770, 40822), (1540, 20411)]