8815280

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1091}}^1$

素因数の和:1205

約数の個数: 40

約数和(自身を含む): 20717424

約数和(自身を除く): 11902144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 404, 505, 808, 1010, 1091, 1616, 2020, 2182, 4040, 4364, 5455, 8080, 8728, 10910, 17456, 21820, 43640, 87280, 110191, 220382, 440764, 550955, 881528, 1101910, 1763056, 2203820, 4407640, 8815280]

約数ペア:

[(1, 8815280), (2, 4407640), (4, 2203820), (5, 1763056), (8, 1101910), (10, 881528), (16, 550955), (20, 440764), (40, 220382), (80, 110191), (101, 87280), (202, 43640), (404, 21820), (505, 17456), (808, 10910), (1010, 8728), (1091, 8080), (1616, 5455), (2020, 4364), (2182, 4040)]