31889910

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{81769}}^1$

素因数の和:81792

約数の個数: 32

約数和(自身を含む): 82424160

約数和(自身を除く): 50534250

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 81769, 163538, 245307, 408845, 490614, 817690, 1062997, 1226535, 2125994, 2453070, 3188991, 5314985, 6377982, 10629970, 15944955, 31889910]

約数ペア:

[(1, 31889910), (2, 15944955), (3, 10629970), (5, 6377982), (6, 5314985), (10, 3188991), (13, 2453070), (15, 2125994), (26, 1226535), (30, 1062997), (39, 817690), (65, 490614), (78, 408845), (130, 245307), (195, 163538), (390, 81769)]