814892720

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{113}}^1\times {\mathrm{827}}^1$

素因数の和:1062

約数の個数: 80

約数和(自身を含む): 1931260320

約数和(自身を除く): 1116367600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 113, 218, 226, 436, 452, 545, 565, 827, 872, 904, 1090, 1130, 1654, 1744, 1808, 2180, 2260, 3308, 4135, 4360, 4520, 6616, 8270, 8720, 9040, 12317, 13232, 16540, 24634, 33080, 49268, 61585, 66160, 90143, 93451, 98536, 123170, 180286, 186902, 197072, 246340, 360572, 373804, 450715, 467255, 492680, 721144, 747608, 901430, 934510, 985360, 1442288, 1495216, 1802860, 1869020, 3605720, 3738040, 7211440, 7476080, 10186159, 20372318, 40744636, 50930795, 81489272, 101861590, 162978544, 203723180, 407446360, 814892720]

約数ペア:

[(1, 814892720), (2, 407446360), (4, 203723180), (5, 162978544), (8, 101861590), (10, 81489272), (16, 50930795), (20, 40744636), (40, 20372318), (80, 10186159), (109, 7476080), (113, 7211440), (218, 3738040), (226, 3605720), (436, 1869020), (452, 1802860), (545, 1495216), (565, 1442288), (827, 985360), (872, 934510), (904, 901430), (1090, 747608), (1130, 721144), (1654, 492680), (1744, 467255), (1808, 450715), (2180, 373804), (2260, 360572), (3308, 246340), (4135, 197072), (4360, 186902), (4520, 180286), (6616, 123170), (8270, 98536), (8720, 93451), (9040, 90143), (12317, 66160), (13232, 61585), (16540, 49268), (24634, 33080)]