81013240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{907}}^1$

素因数の和:965

約数の個数: 128

約数和(自身を含む): 235353600

約数和(自身を除く): 154340360

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 29, 35, 40, 44, 55, 56, 58, 70, 77, 88, 110, 116, 140, 145, 154, 203, 220, 232, 280, 290, 308, 319, 385, 406, 440, 580, 616, 638, 770, 812, 907, 1015, 1160, 1276, 1540, 1595, 1624, 1814, 2030, 2233, 2552, 3080, 3190, 3628, 4060, 4466, 4535, 6349, 6380, 7256, 8120, 8932, 9070, 9977, 11165, 12698, 12760, 17864, 18140, 19954, 22330, 25396, 26303, 31745, 36280, 39908, 44660, 49885, 50792, 52606, 63490, 69839, 79816, 89320, 99770, 105212, 126980, 131515, 139678, 184121, 199540, 210424, 253960, 263030, 279356, 289333, 349195, 368242, 399080, 526060, 558712, 578666, 698390, 736484, 920605, 1052120, 1157332, 1396780, 1446665, 1472968, 1841210, 2025331, 2314664, 2793560, 2893330, 3682420, 4050662, 5786660, 7364840, 8101324, 10126655, 11573320, 16202648, 20253310, 40506620, 81013240]

約数ペア:

[(1, 81013240), (2, 40506620), (4, 20253310), (5, 16202648), (7, 11573320), (8, 10126655), (10, 8101324), (11, 7364840), (14, 5786660), (20, 4050662), (22, 3682420), (28, 2893330), (29, 2793560), (35, 2314664), (40, 2025331), (44, 1841210), (55, 1472968), (56, 1446665), (58, 1396780), (70, 1157332), (77, 1052120), (88, 920605), (110, 736484), (116, 698390), (140, 578666), (145, 558712), (154, 526060), (203, 399080), (220, 368242), (232, 349195), (280, 289333), (290, 279356), (308, 263030), (319, 253960), (385, 210424), (406, 199540), (440, 184121), (580, 139678), (616, 131515), (638, 126980), (770, 105212), (812, 99770), (907, 89320), (1015, 79816), (1160, 69839), (1276, 63490), (1540, 52606), (1595, 50792), (1624, 49885), (1814, 44660), (2030, 39908), (2233, 36280), (2552, 31745), (3080, 26303), (3190, 25396), (3628, 22330), (4060, 19954), (4466, 18140), (4535, 17864), (6349, 12760), (6380, 12698), (7256, 11165), (8120, 9977), (8932, 9070)]