20085660

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{839}}^1$

素因数の和:880

約数の個数: 144

約数和(自身を含む): 73382400

約数和(自身を除く): 53296740

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 28, 30, 35, 36, 38, 42, 45, 57, 60, 63, 70, 76, 84, 90, 95, 105, 114, 126, 133, 140, 171, 180, 190, 210, 228, 252, 266, 285, 315, 342, 380, 399, 420, 532, 570, 630, 665, 684, 798, 839, 855, 1140, 1197, 1260, 1330, 1596, 1678, 1710, 1995, 2394, 2517, 2660, 3356, 3420, 3990, 4195, 4788, 5034, 5873, 5985, 7551, 7980, 8390, 10068, 11746, 11970, 12585, 15102, 15941, 16780, 17619, 23492, 23940, 25170, 29365, 30204, 31882, 35238, 37755, 47823, 50340, 52857, 58730, 63764, 70476, 75510, 79705, 88095, 95646, 105714, 111587, 117460, 143469, 151020, 159410, 176190, 191292, 211428, 223174, 239115, 264285, 286938, 318820, 334761, 352380, 446348, 478230, 528570, 557935, 573876, 669522, 717345, 956460, 1004283, 1057140, 1115870, 1339044, 1434690, 1673805, 2008566, 2231740, 2869380, 3347610, 4017132, 5021415, 6695220, 10042830, 20085660]

約数ペア:

[(1, 20085660), (2, 10042830), (3, 6695220), (4, 5021415), (5, 4017132), (6, 3347610), (7, 2869380), (9, 2231740), (10, 2008566), (12, 1673805), (14, 1434690), (15, 1339044), (18, 1115870), (19, 1057140), (20, 1004283), (21, 956460), (28, 717345), (30, 669522), (35, 573876), (36, 557935), (38, 528570), (42, 478230), (45, 446348), (57, 352380), (60, 334761), (63, 318820), (70, 286938), (76, 264285), (84, 239115), (90, 223174), (95, 211428), (105, 191292), (114, 176190), (126, 159410), (133, 151020), (140, 143469), (171, 117460), (180, 111587), (190, 105714), (210, 95646), (228, 88095), (252, 79705), (266, 75510), (285, 70476), (315, 63764), (342, 58730), (380, 52857), (399, 50340), (420, 47823), (532, 37755), (570, 35238), (630, 31882), (665, 30204), (684, 29365), (798, 25170), (839, 23940), (855, 23492), (1140, 17619), (1197, 16780), (1260, 15941), (1330, 15102), (1596, 12585), (1678, 11970), (1710, 11746), (1995, 10068), (2394, 8390), (2517, 7980), (2660, 7551), (3356, 5985), (3420, 5873), (3990, 5034), (4195, 4788)]