280402

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1$

素因数の和:225

約数の個数: 16

約数和(自身を含む): 455040

約数和(自身を除く): 174638

約数列:

[1, 2, 19, 38, 47, 94, 157, 314, 893, 1786, 2983, 5966, 7379, 14758, 140201, 280402]

約数ペア:

[(1, 280402), (2, 140201), (19, 14758), (38, 7379), (47, 5966), (94, 2983), (157, 1786), (314, 893)]