51443990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{307}}^1\times {\mathrm{1289}}^1$

素因数の和:1616

約数の個数: 32

約数和(自身を含む): 100124640

約数和(自身を除く): 48680650

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 307, 614, 1289, 1535, 2578, 3070, 3991, 6445, 7982, 12890, 16757, 19955, 33514, 39910, 83785, 167570, 395723, 791446, 1978615, 3957230, 5144399, 10288798, 25721995, 51443990]

約数ペア:

[(1, 51443990), (2, 25721995), (5, 10288798), (10, 5144399), (13, 3957230), (26, 1978615), (65, 791446), (130, 395723), (307, 167570), (614, 83785), (1289, 39910), (1535, 33514), (2578, 19955), (3070, 16757), (3991, 12890), (6445, 7982)]