17979380

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{617}}^1$

素因数の和:704

約数の個数: 48

約数和(自身を含む): 39868416

約数和(自身を除く): 21889036

約数列:

[1, 2, 4, 5, 10, 20, 31, 47, 62, 94, 124, 155, 188, 235, 310, 470, 617, 620, 940, 1234, 1457, 2468, 2914, 3085, 5828, 6170, 7285, 12340, 14570, 19127, 28999, 29140, 38254, 57998, 76508, 95635, 115996, 144995, 191270, 289990, 382540, 579980, 898969, 1797938, 3595876, 4494845, 8989690, 17979380]

約数ペア:

[(1, 17979380), (2, 8989690), (4, 4494845), (5, 3595876), (10, 1797938), (20, 898969), (31, 579980), (47, 382540), (62, 289990), (94, 191270), (124, 144995), (155, 115996), (188, 95635), (235, 76508), (310, 57998), (470, 38254), (617, 29140), (620, 28999), (940, 19127), (1234, 14570), (1457, 12340), (2468, 7285), (2914, 6170), (3085, 5828)]