408020972

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{282563}}^1$

素因数の和:282605

約数の個数: 18

約数和(自身を含む): 753598188

約数和(自身を除く): 345577216

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 282563, 565126, 1130252, 5368697, 10737394, 21474788, 102005243, 204010486, 408020972]

約数ペア:

[(1, 408020972), (2, 204010486), (4, 102005243), (19, 21474788), (38, 10737394), (76, 5368697), (361, 1130252), (722, 565126), (1444, 282563)]