20930480

素因数分解:

$2^4\times 5^1\times {\mathrm{261631}}^1$

素因数の和:261644

約数の個数: 20

約数和(自身を含む): 48663552

約数和(自身を除く): 27733072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 261631, 523262, 1046524, 1308155, 2093048, 2616310, 4186096, 5232620, 10465240, 20930480]

約数ペア:

[(1, 20930480), (2, 10465240), (4, 5232620), (5, 4186096), (8, 2616310), (10, 2093048), (16, 1308155), (20, 1046524), (40, 523262), (80, 261631)]