81509880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{679249}}^1$

素因数の和:679263

約数の個数: 32

約数和(自身を含む): 244530000

約数和(自身を除く): 163020120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 679249, 1358498, 2037747, 2716996, 3396245, 4075494, 5433992, 6792490, 8150988, 10188735, 13584980, 16301976, 20377470, 27169960, 40754940, 81509880]

約数ペア:

[(1, 81509880), (2, 40754940), (3, 27169960), (4, 20377470), (5, 16301976), (6, 13584980), (8, 10188735), (10, 8150988), (12, 6792490), (15, 5433992), (20, 4075494), (24, 3396245), (30, 2716996), (40, 2037747), (60, 1358498), (120, 679249)]