978018028

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{280717}}^1$

素因数の和:280801

約数の個数: 24

約数和(自身を含む): 1870704752

約数和(自身を除く): 892686724

約数列:

[1, 2, 4, 13, 26, 52, 67, 134, 268, 871, 1742, 3484, 280717, 561434, 1122868, 3649321, 7298642, 14597284, 18808039, 37616078, 75232156, 244504507, 489009014, 978018028]

約数ペア:

[(1, 978018028), (2, 489009014), (4, 244504507), (13, 75232156), (26, 37616078), (52, 18808039), (67, 14597284), (134, 7298642), (268, 3649321), (871, 1122868), (1742, 561434), (3484, 280717)]