804580

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{821}}^1$

素因数の和:844

約数の個数: 36

約数和(自身を含む): 1967868

約数和(自身を除く): 1163288

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 821, 980, 1642, 3284, 4105, 5747, 8210, 11494, 16420, 22988, 28735, 40229, 57470, 80458, 114940, 160916, 201145, 402290, 804580]

約数ペア:

[(1, 804580), (2, 402290), (4, 201145), (5, 160916), (7, 114940), (10, 80458), (14, 57470), (20, 40229), (28, 28735), (35, 22988), (49, 16420), (70, 11494), (98, 8210), (140, 5747), (196, 4105), (245, 3284), (490, 1642), (821, 980)]