19720584

素因数分解:

$2^3\times 3^4\times {\mathrm{13}}^1\times {\mathrm{2341}}^1$

素因数の和:2372

約数の個数: 80

約数和(自身を含む): 59510220

約数和(自身を除く): 39789636

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 27, 36, 39, 52, 54, 72, 78, 81, 104, 108, 117, 156, 162, 216, 234, 312, 324, 351, 468, 648, 702, 936, 1053, 1404, 2106, 2341, 2808, 4212, 4682, 7023, 8424, 9364, 14046, 18728, 21069, 28092, 30433, 42138, 56184, 60866, 63207, 84276, 91299, 121732, 126414, 168552, 182598, 189621, 243464, 252828, 273897, 365196, 379242, 505656, 547794, 730392, 758484, 821691, 1095588, 1516968, 1643382, 2191176, 2465073, 3286764, 4930146, 6573528, 9860292, 19720584]

約数ペア:

[(1, 19720584), (2, 9860292), (3, 6573528), (4, 4930146), (6, 3286764), (8, 2465073), (9, 2191176), (12, 1643382), (13, 1516968), (18, 1095588), (24, 821691), (26, 758484), (27, 730392), (36, 547794), (39, 505656), (52, 379242), (54, 365196), (72, 273897), (78, 252828), (81, 243464), (104, 189621), (108, 182598), (117, 168552), (156, 126414), (162, 121732), (216, 91299), (234, 84276), (312, 63207), (324, 60866), (351, 56184), (468, 42138), (648, 30433), (702, 28092), (936, 21069), (1053, 18728), (1404, 14046), (2106, 9364), (2341, 8424), (2808, 7023), (4212, 4682)]