19919680

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{5659}}^1$

素因数の和:5687

約数の個数: 56

約数和(自身を含む): 51755040

約数和(自身を除く): 31835360

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 160, 176, 220, 320, 352, 440, 704, 880, 1760, 3520, 5659, 11318, 22636, 28295, 45272, 56590, 62249, 90544, 113180, 124498, 181088, 226360, 248996, 311245, 362176, 452720, 497992, 622490, 905440, 995984, 1244980, 1810880, 1991968, 2489960, 3983936, 4979920, 9959840, 19919680]

約数ペア:

[(1, 19919680), (2, 9959840), (4, 4979920), (5, 3983936), (8, 2489960), (10, 1991968), (11, 1810880), (16, 1244980), (20, 995984), (22, 905440), (32, 622490), (40, 497992), (44, 452720), (55, 362176), (64, 311245), (80, 248996), (88, 226360), (110, 181088), (160, 124498), (176, 113180), (220, 90544), (320, 62249), (352, 56590), (440, 45272), (704, 28295), (880, 22636), (1760, 11318), (3520, 5659)]