20317395

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{179}}^1$

素因数の和:264

約数の個数: 64

約数和(自身を含む): 39813120

約数和(自身を除く): 19495725

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 47, 69, 105, 115, 141, 161, 179, 235, 329, 345, 483, 537, 705, 805, 895, 987, 1081, 1253, 1645, 2415, 2685, 3243, 3759, 4117, 4935, 5405, 6265, 7567, 8413, 12351, 16215, 18795, 20585, 22701, 25239, 28819, 37835, 42065, 58891, 61755, 86457, 113505, 126195, 144095, 176673, 193499, 294455, 432285, 580497, 883365, 967495, 1354493, 2902485, 4063479, 6772465, 20317395]

約数ペア:

[(1, 20317395), (3, 6772465), (5, 4063479), (7, 2902485), (15, 1354493), (21, 967495), (23, 883365), (35, 580497), (47, 432285), (69, 294455), (105, 193499), (115, 176673), (141, 144095), (161, 126195), (179, 113505), (235, 86457), (329, 61755), (345, 58891), (483, 42065), (537, 37835), (705, 28819), (805, 25239), (895, 22701), (987, 20585), (1081, 18795), (1253, 16215), (1645, 12351), (2415, 8413), (2685, 7567), (3243, 6265), (3759, 5405), (4117, 4935)]