205854560

素因数分解:

$2^5\times 5^1\times {\mathrm{71}}^1\times {\mathrm{18121}}^1$

素因数の和:18207

約数の個数: 48

約数和(自身を含む): 493208352

約数和(自身を除く): 287353792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 71, 80, 142, 160, 284, 355, 568, 710, 1136, 1420, 2272, 2840, 5680, 11360, 18121, 36242, 72484, 90605, 144968, 181210, 289936, 362420, 579872, 724840, 1286591, 1449680, 2573182, 2899360, 5146364, 6432955, 10292728, 12865910, 20585456, 25731820, 41170912, 51463640, 102927280, 205854560]

約数ペア:

[(1, 205854560), (2, 102927280), (4, 51463640), (5, 41170912), (8, 25731820), (10, 20585456), (16, 12865910), (20, 10292728), (32, 6432955), (40, 5146364), (71, 2899360), (80, 2573182), (142, 1449680), (160, 1286591), (284, 724840), (355, 579872), (568, 362420), (710, 289936), (1136, 181210), (1420, 144968), (2272, 90605), (2840, 72484), (5680, 36242), (11360, 18121)]