81317264

素因数分解:

$2^4\times 7^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1$

素因数の和:197

約数の個数: 120

約数和(自身を含む): 198469440

約数和(自身を除く): 117152176

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 49, 53, 56, 76, 98, 103, 106, 112, 133, 152, 196, 206, 212, 266, 304, 371, 392, 412, 424, 532, 721, 742, 784, 824, 848, 931, 1007, 1064, 1442, 1484, 1648, 1862, 1957, 2014, 2128, 2597, 2884, 2968, 3724, 3914, 4028, 5047, 5194, 5459, 5768, 5936, 7049, 7448, 7828, 8056, 10094, 10388, 10918, 11536, 13699, 14098, 14896, 15656, 16112, 20188, 20776, 21836, 27398, 28196, 31312, 38213, 40376, 41552, 43672, 49343, 54796, 56392, 76426, 80752, 87344, 95893, 98686, 103721, 109592, 112784, 152852, 191786, 197372, 207442, 219184, 267491, 305704, 383572, 394744, 414884, 534982, 611408, 726047, 767144, 789488, 829768, 1069964, 1452094, 1534288, 1659536, 2139928, 2904188, 4279856, 5082329, 5808376, 10164658, 11616752, 20329316, 40658632, 81317264]

約数ペア:

[(1, 81317264), (2, 40658632), (4, 20329316), (7, 11616752), (8, 10164658), (14, 5808376), (16, 5082329), (19, 4279856), (28, 2904188), (38, 2139928), (49, 1659536), (53, 1534288), (56, 1452094), (76, 1069964), (98, 829768), (103, 789488), (106, 767144), (112, 726047), (133, 611408), (152, 534982), (196, 414884), (206, 394744), (212, 383572), (266, 305704), (304, 267491), (371, 219184), (392, 207442), (412, 197372), (424, 191786), (532, 152852), (721, 112784), (742, 109592), (784, 103721), (824, 98686), (848, 95893), (931, 87344), (1007, 80752), (1064, 76426), (1442, 56392), (1484, 54796), (1648, 49343), (1862, 43672), (1957, 41552), (2014, 40376), (2128, 38213), (2597, 31312), (2884, 28196), (2968, 27398), (3724, 21836), (3914, 20776), (4028, 20188), (5047, 16112), (5194, 15656), (5459, 14896), (5768, 14098), (5936, 13699), (7049, 11536), (7448, 10918), (7828, 10388), (8056, 10094)]