80210320

素因数分解:

$2^4\times 5^1\times {\mathrm{919}}^1\times {\mathrm{1091}}^1$

素因数の和:2023

約数の個数: 40

約数和(自身を含む): 186863040

約数和(自身を除く): 106652720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 919, 1091, 1838, 2182, 3676, 4364, 4595, 5455, 7352, 8728, 9190, 10910, 14704, 17456, 18380, 21820, 36760, 43640, 73520, 87280, 1002629, 2005258, 4010516, 5013145, 8021032, 10026290, 16042064, 20052580, 40105160, 80210320]

約数ペア:

[(1, 80210320), (2, 40105160), (4, 20052580), (5, 16042064), (8, 10026290), (10, 8021032), (16, 5013145), (20, 4010516), (40, 2005258), (80, 1002629), (919, 87280), (1091, 73520), (1838, 43640), (2182, 36760), (3676, 21820), (4364, 18380), (4595, 17456), (5455, 14704), (7352, 10910), (8728, 9190)]