78462916

素因数分解:

$2^2\times 7^2\times {\mathrm{400321}}^1$

素因数の和:400339

約数の個数: 18

約数和(自身を含む): 159728478

約数和(自身を除く): 81265562

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 400321, 800642, 1601284, 2802247, 5604494, 11208988, 19615729, 39231458, 78462916]

約数ペア:

[(1, 78462916), (2, 39231458), (4, 19615729), (7, 11208988), (14, 5604494), (28, 2802247), (49, 1601284), (98, 800642), (196, 400321)]