81904914

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1613}}^1$

素因数の和:1672

約数の個数: 96

約数和(自身を含む): 225598464

約数和(自身を除く): 143693550

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 31, 39, 42, 62, 63, 78, 91, 93, 117, 126, 182, 186, 217, 234, 273, 279, 403, 434, 546, 558, 651, 806, 819, 1209, 1302, 1613, 1638, 1953, 2418, 2821, 3226, 3627, 3906, 4839, 5642, 7254, 8463, 9678, 11291, 14517, 16926, 20969, 22582, 25389, 29034, 33873, 41938, 50003, 50778, 62907, 67746, 100006, 101619, 125814, 146783, 150009, 188721, 203238, 293566, 300018, 350021, 377442, 440349, 450027, 650039, 700042, 880698, 900054, 1050063, 1300078, 1321047, 1950117, 2100126, 2642094, 3150189, 3900234, 4550273, 5850351, 6300378, 9100546, 11700702, 13650819, 27301638, 40952457, 81904914]

約数ペア:

[(1, 81904914), (2, 40952457), (3, 27301638), (6, 13650819), (7, 11700702), (9, 9100546), (13, 6300378), (14, 5850351), (18, 4550273), (21, 3900234), (26, 3150189), (31, 2642094), (39, 2100126), (42, 1950117), (62, 1321047), (63, 1300078), (78, 1050063), (91, 900054), (93, 880698), (117, 700042), (126, 650039), (182, 450027), (186, 440349), (217, 377442), (234, 350021), (273, 300018), (279, 293566), (403, 203238), (434, 188721), (546, 150009), (558, 146783), (651, 125814), (806, 101619), (819, 100006), (1209, 67746), (1302, 62907), (1613, 50778), (1638, 50003), (1953, 41938), (2418, 33873), (2821, 29034), (3226, 25389), (3627, 22582), (3906, 20969), (4839, 16926), (5642, 14517), (7254, 11291), (8463, 9678)]