20243265

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1$

素因数の和:246

約数の個数: 64

約数和(自身を含む): 39782400

約数和(自身を除く): 19539135

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 73, 95, 105, 133, 139, 219, 285, 365, 399, 417, 511, 665, 695, 973, 1095, 1387, 1533, 1995, 2085, 2555, 2641, 2919, 4161, 4865, 6935, 7665, 7923, 9709, 10147, 13205, 14595, 18487, 20805, 29127, 30441, 39615, 48545, 50735, 55461, 71029, 92435, 145635, 152205, 192793, 213087, 277305, 355145, 578379, 963965, 1065435, 1349551, 2891895, 4048653, 6747755, 20243265]

約数ペア:

[(1, 20243265), (3, 6747755), (5, 4048653), (7, 2891895), (15, 1349551), (19, 1065435), (21, 963965), (35, 578379), (57, 355145), (73, 277305), (95, 213087), (105, 192793), (133, 152205), (139, 145635), (219, 92435), (285, 71029), (365, 55461), (399, 50735), (417, 48545), (511, 39615), (665, 30441), (695, 29127), (973, 20805), (1095, 18487), (1387, 14595), (1533, 13205), (1995, 10147), (2085, 9709), (2555, 7923), (2641, 7665), (2919, 6935), (4161, 4865)]