85820560

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{21893}}^1$

素因数の和:21920

約数の個数: 60

約数和(自身を含む): 232120188

約数和(自身を除く): 146299628

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 21893, 43786, 87572, 109465, 153251, 175144, 218930, 306502, 350288, 437860, 613004, 766255, 875720, 1072757, 1226008, 1532510, 1751440, 2145514, 2452016, 3065020, 4291028, 5363785, 6130040, 8582056, 10727570, 12260080, 17164112, 21455140, 42910280, 85820560]

約数ペア:

[(1, 85820560), (2, 42910280), (4, 21455140), (5, 17164112), (7, 12260080), (8, 10727570), (10, 8582056), (14, 6130040), (16, 5363785), (20, 4291028), (28, 3065020), (35, 2452016), (40, 2145514), (49, 1751440), (56, 1532510), (70, 1226008), (80, 1072757), (98, 875720), (112, 766255), (140, 613004), (196, 437860), (245, 350288), (280, 306502), (392, 218930), (490, 175144), (560, 153251), (784, 109465), (980, 87572), (1960, 43786), (3920, 21893)]