25646840

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{457}}^1$

素因数の和:552

約数の個数: 64

約数和(自身を含む): 61335360

約数和(自身を除く): 35688520

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 61, 92, 115, 122, 184, 230, 244, 305, 457, 460, 488, 610, 914, 920, 1220, 1403, 1828, 2285, 2440, 2806, 3656, 4570, 5612, 7015, 9140, 10511, 11224, 14030, 18280, 21022, 27877, 28060, 42044, 52555, 55754, 56120, 84088, 105110, 111508, 139385, 210220, 223016, 278770, 420440, 557540, 641171, 1115080, 1282342, 2564684, 3205855, 5129368, 6411710, 12823420, 25646840]

約数ペア:

[(1, 25646840), (2, 12823420), (4, 6411710), (5, 5129368), (8, 3205855), (10, 2564684), (20, 1282342), (23, 1115080), (40, 641171), (46, 557540), (61, 420440), (92, 278770), (115, 223016), (122, 210220), (184, 139385), (230, 111508), (244, 105110), (305, 84088), (457, 56120), (460, 55754), (488, 52555), (610, 42044), (914, 28060), (920, 27877), (1220, 21022), (1403, 18280), (1828, 14030), (2285, 11224), (2440, 10511), (2806, 9140), (3656, 7015), (4570, 5612)]