20165985120

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{688729}}^1$

素因数の和:688808

約数の個数: 96

約数和(自身を含む): 64564305120

約数和(自身を除く): 44398320000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 61, 80, 96, 120, 122, 160, 183, 240, 244, 305, 366, 480, 488, 610, 732, 915, 976, 1220, 1464, 1830, 1952, 2440, 2928, 3660, 4880, 5856, 7320, 9760, 14640, 29280, 688729, 1377458, 2066187, 2754916, 3443645, 4132374, 5509832, 6887290, 8264748, 10330935, 11019664, 13774580, 16529496, 20661870, 22039328, 27549160, 33058992, 41323740, 42012469, 55098320, 66117984, 82647480, 84024938, 110196640, 126037407, 165294960, 168049876, 210062345, 252074814, 330589920, 336099752, 420124690, 504149628, 630187035, 672199504, 840249380, 1008299256, 1260374070, 1344399008, 1680498760, 2016598512, 2520748140, 3360997520, 4033197024, 5041496280, 6721995040, 10082992560, 20165985120]

約数ペア:

[(1, 20165985120), (2, 10082992560), (3, 6721995040), (4, 5041496280), (5, 4033197024), (6, 3360997520), (8, 2520748140), (10, 2016598512), (12, 1680498760), (15, 1344399008), (16, 1260374070), (20, 1008299256), (24, 840249380), (30, 672199504), (32, 630187035), (40, 504149628), (48, 420124690), (60, 336099752), (61, 330589920), (80, 252074814), (96, 210062345), (120, 168049876), (122, 165294960), (160, 126037407), (183, 110196640), (240, 84024938), (244, 82647480), (305, 66117984), (366, 55098320), (480, 42012469), (488, 41323740), (610, 33058992), (732, 27549160), (915, 22039328), (976, 20661870), (1220, 16529496), (1464, 13774580), (1830, 11019664), (1952, 10330935), (2440, 8264748), (2928, 6887290), (3660, 5509832), (4880, 4132374), (5856, 3443645), (7320, 2754916), (9760, 2066187), (14640, 1377458), (29280, 688729)]