39870220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{1723}}^1$

素因数の和:1834

約数の個数: 48

約数和(自身を含む): 91234080

約数和(自身を除く): 51363860

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 89, 130, 178, 260, 356, 445, 890, 1157, 1723, 1780, 2314, 3446, 4628, 5785, 6892, 8615, 11570, 17230, 22399, 23140, 34460, 44798, 89596, 111995, 153347, 223990, 306694, 447980, 613388, 766735, 1533470, 1993511, 3066940, 3987022, 7974044, 9967555, 19935110, 39870220]

約数ペア:

[(1, 39870220), (2, 19935110), (4, 9967555), (5, 7974044), (10, 3987022), (13, 3066940), (20, 1993511), (26, 1533470), (52, 766735), (65, 613388), (89, 447980), (130, 306694), (178, 223990), (260, 153347), (356, 111995), (445, 89596), (890, 44798), (1157, 34460), (1723, 23140), (1780, 22399), (2314, 17230), (3446, 11570), (4628, 8615), (5785, 6892)]