86784940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{421}}^1\times {\mathrm{937}}^1$

素因数の和:1378

約数の個数: 48

約数和(自身を含む): 199501344

約数和(自身を除く): 112716404

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 421, 842, 937, 1684, 1874, 2105, 3748, 4210, 4631, 4685, 8420, 9262, 9370, 10307, 18524, 18740, 20614, 23155, 41228, 46310, 51535, 92620, 103070, 206140, 394477, 788954, 1577908, 1972385, 3944770, 4339247, 7889540, 8678494, 17356988, 21696235, 43392470, 86784940]

約数ペア:

[(1, 86784940), (2, 43392470), (4, 21696235), (5, 17356988), (10, 8678494), (11, 7889540), (20, 4339247), (22, 3944770), (44, 1972385), (55, 1577908), (110, 788954), (220, 394477), (421, 206140), (842, 103070), (937, 92620), (1684, 51535), (1874, 46310), (2105, 41228), (3748, 23155), (4210, 20614), (4631, 18740), (4685, 18524), (8420, 10307), (9262, 9370)]