20397492045

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{270937}}^1$

素因数の和:271194

約数の個数: 48

約数和(自身を含む): 40575674880

約数和(自身を除く): 20178182835

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 239, 315, 717, 1195, 1673, 2151, 3585, 5019, 8365, 10755, 15057, 25095, 75285, 270937, 812811, 1354685, 1896559, 2438433, 4064055, 5689677, 9482795, 12192165, 17069031, 28448385, 64753943, 85345155, 194261829, 323769715, 453277601, 582785487, 971309145, 1359832803, 2266388005, 2913927435, 4079498409, 6799164015, 20397492045]

約数ペア:

[(1, 20397492045), (3, 6799164015), (5, 4079498409), (7, 2913927435), (9, 2266388005), (15, 1359832803), (21, 971309145), (35, 582785487), (45, 453277601), (63, 323769715), (105, 194261829), (239, 85345155), (315, 64753943), (717, 28448385), (1195, 17069031), (1673, 12192165), (2151, 9482795), (3585, 5689677), (5019, 4064055), (8365, 2438433), (10755, 1896559), (15057, 1354685), (25095, 812811), (75285, 270937)]