267920

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1$

素因数の和:227

約数の個数: 40

約数和(自身を含む): 662904

約数和(自身を除く): 394984

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 197, 272, 340, 394, 680, 788, 985, 1360, 1576, 1970, 3152, 3349, 3940, 6698, 7880, 13396, 15760, 16745, 26792, 33490, 53584, 66980, 133960, 267920]

約数ペア:

[(1, 267920), (2, 133960), (4, 66980), (5, 53584), (8, 33490), (10, 26792), (16, 16745), (17, 15760), (20, 13396), (34, 7880), (40, 6698), (68, 3940), (80, 3349), (85, 3152), (136, 1970), (170, 1576), (197, 1360), (272, 985), (340, 788), (394, 680)]