20235560

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{16319}}^1$

素因数の和:16361

約数の個数: 32

約数和(自身を含む): 47001600

約数和(自身を除く): 26766040

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 16319, 32638, 65276, 81595, 130552, 163190, 326380, 505889, 652760, 1011778, 2023556, 2529445, 4047112, 5058890, 10117780, 20235560]

約数ペア:

[(1, 20235560), (2, 10117780), (4, 5058890), (5, 4047112), (8, 2529445), (10, 2023556), (20, 1011778), (31, 652760), (40, 505889), (62, 326380), (124, 163190), (155, 130552), (248, 81595), (310, 65276), (620, 32638), (1240, 16319)]