20081475

素因数分解:

$3^2\times 5^2\times {\mathrm{149}}^1\times {\mathrm{599}}^1$

素因数の和:764

約数の個数: 36

約数和(自身を含む): 36270000

約数和(自身を除く): 16188525

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 149, 225, 447, 599, 745, 1341, 1797, 2235, 2995, 3725, 5391, 6705, 8985, 11175, 14975, 26955, 33525, 44925, 89251, 134775, 267753, 446255, 803259, 1338765, 2231275, 4016295, 6693825, 20081475]

約数ペア:

[(1, 20081475), (3, 6693825), (5, 4016295), (9, 2231275), (15, 1338765), (25, 803259), (45, 446255), (75, 267753), (149, 134775), (225, 89251), (447, 44925), (599, 33525), (745, 26955), (1341, 14975), (1797, 11175), (2235, 8985), (2995, 6705), (3725, 5391)]