81274940

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{109831}}^1$

素因数の和:109877

約数の個数: 24

約数和(自身を含む): 175291872

約数和(自身を除く): 94016932

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 109831, 219662, 439324, 549155, 1098310, 2196620, 4063747, 8127494, 16254988, 20318735, 40637470, 81274940]

約数ペア:

[(1, 81274940), (2, 40637470), (4, 20318735), (5, 16254988), (10, 8127494), (20, 4063747), (37, 2196620), (74, 1098310), (148, 549155), (185, 439324), (370, 219662), (740, 109831)]