622520

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{197}}^1$

素因数の和:287

約数の個数: 32

約数和(自身を含む): 1425600

約数和(自身を除く): 803080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 197, 316, 394, 395, 632, 788, 790, 985, 1576, 1580, 1970, 3160, 3940, 7880, 15563, 31126, 62252, 77815, 124504, 155630, 311260, 622520]

約数ペア:

[(1, 622520), (2, 311260), (4, 155630), (5, 124504), (8, 77815), (10, 62252), (20, 31126), (40, 15563), (79, 7880), (158, 3940), (197, 3160), (316, 1970), (394, 1580), (395, 1576), (632, 985), (788, 790)]