1390643696

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{6685787}}^1$

素因数の和:6685808

約数の個数: 20

約数和(自身を含む): 2901631992

約数和(自身を除く): 1510988296

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 6685787, 13371574, 26743148, 53486296, 86915231, 106972592, 173830462, 347660924, 695321848, 1390643696]

約数ペア:

[(1, 1390643696), (2, 695321848), (4, 347660924), (8, 173830462), (13, 106972592), (16, 86915231), (26, 53486296), (52, 26743148), (104, 13371574), (208, 6685787)]