28134460

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{19813}}^1$

素因数の和:19893

約数の個数: 24

約数和(自身を含む): 59917536

約数和(自身を除く): 31783076

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 19813, 39626, 79252, 99065, 198130, 396260, 1406723, 2813446, 5626892, 7033615, 14067230, 28134460]

約数ペア:

[(1, 28134460), (2, 14067230), (4, 7033615), (5, 5626892), (10, 2813446), (20, 1406723), (71, 396260), (142, 198130), (284, 99065), (355, 79252), (710, 39626), (1420, 19813)]