28254940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{201821}}^1$

素因数の和:201837

約数の個数: 24

約数和(自身を含む): 67812192

約数和(自身を除く): 39557252

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 201821, 403642, 807284, 1009105, 1412747, 2018210, 2825494, 4036420, 5650988, 7063735, 14127470, 28254940]

約数ペア:

[(1, 28254940), (2, 14127470), (4, 7063735), (5, 5650988), (7, 4036420), (10, 2825494), (14, 2018210), (20, 1412747), (28, 1009105), (35, 807284), (70, 403642), (140, 201821)]