813303980

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{865217}}^1$

素因数の和:865273

約数の個数: 24

約数和(自身を含む): 1744279488

約数和(自身を除く): 930975508

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 865217, 1730434, 3460868, 4326085, 8652170, 17304340, 40665199, 81330398, 162660796, 203325995, 406651990, 813303980]

約数ペア:

[(1, 813303980), (2, 406651990), (4, 203325995), (5, 162660796), (10, 81330398), (20, 40665199), (47, 17304340), (94, 8652170), (188, 4326085), (235, 3460868), (470, 1730434), (940, 865217)]