222076280

素因数分解:

$2^3\times 5^1\times {\mathrm{647}}^1\times {\mathrm{8581}}^1$

素因数の和:9239

約数の個数: 32

約数和(自身を含む): 500502240

約数和(自身を除く): 278425960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 647, 1294, 2588, 3235, 5176, 6470, 8581, 12940, 17162, 25880, 34324, 42905, 68648, 85810, 171620, 343240, 5551907, 11103814, 22207628, 27759535, 44415256, 55519070, 111038140, 222076280]

約数ペア:

[(1, 222076280), (2, 111038140), (4, 55519070), (5, 44415256), (8, 27759535), (10, 22207628), (20, 11103814), (40, 5551907), (647, 343240), (1294, 171620), (2588, 85810), (3235, 68648), (5176, 42905), (6470, 34324), (8581, 25880), (12940, 17162)]