399608665

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{151}}^1\times {\mathrm{313}}^1$

素因数の和:577

約数の個数: 32

約数和(自身を含む): 515462400

約数和(自身を除く): 115853735

約数列:

[1, 5, 19, 89, 95, 151, 313, 445, 755, 1565, 1691, 2869, 5947, 8455, 13439, 14345, 27857, 29735, 47263, 67195, 139285, 236315, 255341, 529283, 897997, 1276705, 2646415, 4206407, 4489985, 21032035, 79921733, 399608665]

約数ペア:

[(1, 399608665), (5, 79921733), (19, 21032035), (89, 4489985), (95, 4206407), (151, 2646415), (313, 1276705), (445, 897997), (755, 529283), (1565, 255341), (1691, 236315), (2869, 139285), (5947, 67195), (8455, 47263), (13439, 29735), (14345, 27857)]