9999760

素因数分解:

$2^4\times 5^1\times {\mathrm{239}}^1\times {\mathrm{523}}^1$

素因数の和:775

約数の個数: 40

約数和(自身を含む): 23391360

約数和(自身を除く): 13391600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 239, 478, 523, 956, 1046, 1195, 1912, 2092, 2390, 2615, 3824, 4184, 4780, 5230, 8368, 9560, 10460, 19120, 20920, 41840, 124997, 249994, 499988, 624985, 999976, 1249970, 1999952, 2499940, 4999880, 9999760]

約数ペア:

[(1, 9999760), (2, 4999880), (4, 2499940), (5, 1999952), (8, 1249970), (10, 999976), (16, 624985), (20, 499988), (40, 249994), (80, 124997), (239, 41840), (478, 20920), (523, 19120), (956, 10460), (1046, 9560), (1195, 8368), (1912, 5230), (2092, 4780), (2390, 4184), (2615, 3824)]