640371916

素因数分解:

$2^2\times {\mathrm{101}}^1\times {\mathrm{271}}^1\times {\mathrm{5849}}^1$

素因数の和:6225

約数の個数: 24

約数和(自身を含む): 1136116800

約数和(自身を除く): 495744884

約数列:

[1, 2, 4, 101, 202, 271, 404, 542, 1084, 5849, 11698, 23396, 27371, 54742, 109484, 590749, 1181498, 1585079, 2362996, 3170158, 6340316, 160092979, 320185958, 640371916]

約数ペア:

[(1, 640371916), (2, 320185958), (4, 160092979), (101, 6340316), (202, 3170158), (271, 2362996), (404, 1585079), (542, 1181498), (1084, 590749), (5849, 109484), (11698, 54742), (23396, 27371)]