205296880

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{82781}}^1$

素因数の和:82825

約数の個数: 40

約数和(自身を含む): 492718464

約数和(自身を除く): 287421584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 82781, 165562, 331124, 413905, 662248, 827810, 1324496, 1655620, 2566211, 3311240, 5132422, 6622480, 10264844, 12831055, 20529688, 25662110, 41059376, 51324220, 102648440, 205296880]

約数ペア:

[(1, 205296880), (2, 102648440), (4, 51324220), (5, 41059376), (8, 25662110), (10, 20529688), (16, 12831055), (20, 10264844), (31, 6622480), (40, 5132422), (62, 3311240), (80, 2566211), (124, 1655620), (155, 1324496), (248, 827810), (310, 662248), (496, 413905), (620, 331124), (1240, 165562), (2480, 82781)]