7898890

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{563}}^1$

素因数の和:654

約数の個数: 32

約数和(自身を含む): 15106176

約数和(自身を除く): 7207286

約数列:

[1, 2, 5, 10, 23, 46, 61, 115, 122, 230, 305, 563, 610, 1126, 1403, 2806, 2815, 5630, 7015, 12949, 14030, 25898, 34343, 64745, 68686, 129490, 171715, 343430, 789889, 1579778, 3949445, 7898890]

約数ペア:

[(1, 7898890), (2, 3949445), (5, 1579778), (10, 789889), (23, 343430), (46, 171715), (61, 129490), (115, 68686), (122, 64745), (230, 34343), (305, 25898), (563, 14030), (610, 12949), (1126, 7015), (1403, 5630), (2806, 2815)]