20213305905

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{809}}^1\times {\mathrm{3463}}^1$

素因数の和:4330

約数の個数: 64

約数和(自身を含む): 35824965120

約数和(自身を除く): 15611659215

約数列:

[1, 3, 5, 13, 15, 37, 39, 65, 111, 185, 195, 481, 555, 809, 1443, 2405, 2427, 3463, 4045, 7215, 10389, 10517, 12135, 17315, 29933, 31551, 45019, 51945, 52585, 89799, 128131, 135057, 149665, 157755, 225095, 384393, 389129, 448995, 640655, 675285, 1167387, 1665703, 1921965, 1945645, 2801567, 4997109, 5836935, 8328515, 8404701, 14007835, 24985545, 36420371, 42023505, 103657979, 109261113, 182101855, 310973937, 518289895, 546305565, 1347553727, 1554869685, 4042661181, 6737768635, 20213305905]

約数ペア:

[(1, 20213305905), (3, 6737768635), (5, 4042661181), (13, 1554869685), (15, 1347553727), (37, 546305565), (39, 518289895), (65, 310973937), (111, 182101855), (185, 109261113), (195, 103657979), (481, 42023505), (555, 36420371), (809, 24985545), (1443, 14007835), (2405, 8404701), (2427, 8328515), (3463, 5836935), (4045, 4997109), (7215, 2801567), (10389, 1945645), (10517, 1921965), (12135, 1665703), (17315, 1167387), (29933, 675285), (31551, 640655), (45019, 448995), (51945, 389129), (52585, 384393), (89799, 225095), (128131, 157755), (135057, 149665)]