20572760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{39563}}^1$

素因数の和:39587

約数の個数: 32

約数和(自身を含む): 49850640

約数和(自身を除く): 29277880

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 39563, 79126, 158252, 197815, 316504, 395630, 514319, 791260, 1028638, 1582520, 2057276, 2571595, 4114552, 5143190, 10286380, 20572760]

約数ペア:

[(1, 20572760), (2, 10286380), (4, 5143190), (5, 4114552), (8, 2571595), (10, 2057276), (13, 1582520), (20, 1028638), (26, 791260), (40, 514319), (52, 395630), (65, 316504), (104, 197815), (130, 158252), (260, 79126), (520, 39563)]