25719640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{347}}^1$

素因数の和:484

約数の個数: 64

約数和(自身を含む): 62013600

約数和(自身を除く): 36293960

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 109, 136, 170, 218, 340, 347, 436, 545, 680, 694, 872, 1090, 1388, 1735, 1853, 2180, 2776, 3470, 3706, 4360, 5899, 6940, 7412, 9265, 11798, 13880, 14824, 18530, 23596, 29495, 37060, 37823, 47192, 58990, 74120, 75646, 117980, 151292, 189115, 235960, 302584, 378230, 642991, 756460, 1285982, 1512920, 2571964, 3214955, 5143928, 6429910, 12859820, 25719640]

約数ペア:

[(1, 25719640), (2, 12859820), (4, 6429910), (5, 5143928), (8, 3214955), (10, 2571964), (17, 1512920), (20, 1285982), (34, 756460), (40, 642991), (68, 378230), (85, 302584), (109, 235960), (136, 189115), (170, 151292), (218, 117980), (340, 75646), (347, 74120), (436, 58990), (545, 47192), (680, 37823), (694, 37060), (872, 29495), (1090, 23596), (1388, 18530), (1735, 14824), (1853, 13880), (2180, 11798), (2776, 9265), (3470, 7412), (3706, 6940), (4360, 5899)]