25573640

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{223}}^1$

素因数の和:342

約数の個数: 64

約数和(自身を含む): 59996160

約数和(自身を除く): 34422520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 61, 94, 122, 188, 223, 235, 244, 305, 376, 446, 470, 488, 610, 892, 940, 1115, 1220, 1784, 1880, 2230, 2440, 2867, 4460, 5734, 8920, 10481, 11468, 13603, 14335, 20962, 22936, 27206, 28670, 41924, 52405, 54412, 57340, 68015, 83848, 104810, 108824, 114680, 136030, 209620, 272060, 419240, 544120, 639341, 1278682, 2557364, 3196705, 5114728, 6393410, 12786820, 25573640]

約数ペア:

[(1, 25573640), (2, 12786820), (4, 6393410), (5, 5114728), (8, 3196705), (10, 2557364), (20, 1278682), (40, 639341), (47, 544120), (61, 419240), (94, 272060), (122, 209620), (188, 136030), (223, 114680), (235, 108824), (244, 104810), (305, 83848), (376, 68015), (446, 57340), (470, 54412), (488, 52405), (610, 41924), (892, 28670), (940, 27206), (1115, 22936), (1220, 20962), (1784, 14335), (1880, 13603), (2230, 11468), (2440, 10481), (2867, 8920), (4460, 5734)]