778826580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{97}}^1\times {\mathrm{2731}}^1$

素因数の和:2854

約数の個数: 144

約数和(自身を含む): 2563839936

約数和(自身を除く): 1785013356

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 97, 98, 105, 140, 147, 194, 196, 210, 245, 291, 294, 388, 420, 485, 490, 582, 588, 679, 735, 970, 980, 1164, 1358, 1455, 1470, 1940, 2037, 2716, 2731, 2910, 2940, 3395, 4074, 4753, 5462, 5820, 6790, 8148, 8193, 9506, 10185, 10924, 13580, 13655, 14259, 16386, 19012, 19117, 20370, 23765, 27310, 28518, 32772, 38234, 40740, 40965, 47530, 54620, 57036, 57351, 71295, 76468, 81930, 95060, 95585, 114702, 133819, 142590, 163860, 191170, 229404, 264907, 267638, 285180, 286755, 382340, 401457, 529814, 535276, 573510, 669095, 794721, 802914, 1059628, 1147020, 1324535, 1338190, 1589442, 1605828, 1854349, 2007285, 2649070, 2676380, 3178884, 3708698, 3973605, 4014570, 5298140, 5563047, 7417396, 7947210, 8029140, 9271745, 11126094, 12980443, 15894420, 18543490, 22252188, 25960886, 27815235, 37086980, 38941329, 51921772, 55630470, 64902215, 77882658, 111260940, 129804430, 155765316, 194706645, 259608860, 389413290, 778826580]

約数ペア:

[(1, 778826580), (2, 389413290), (3, 259608860), (4, 194706645), (5, 155765316), (6, 129804430), (7, 111260940), (10, 77882658), (12, 64902215), (14, 55630470), (15, 51921772), (20, 38941329), (21, 37086980), (28, 27815235), (30, 25960886), (35, 22252188), (42, 18543490), (49, 15894420), (60, 12980443), (70, 11126094), (84, 9271745), (97, 8029140), (98, 7947210), (105, 7417396), (140, 5563047), (147, 5298140), (194, 4014570), (196, 3973605), (210, 3708698), (245, 3178884), (291, 2676380), (294, 2649070), (388, 2007285), (420, 1854349), (485, 1605828), (490, 1589442), (582, 1338190), (588, 1324535), (679, 1147020), (735, 1059628), (970, 802914), (980, 794721), (1164, 669095), (1358, 573510), (1455, 535276), (1470, 529814), (1940, 401457), (2037, 382340), (2716, 286755), (2731, 285180), (2910, 267638), (2940, 264907), (3395, 229404), (4074, 191170), (4753, 163860), (5462, 142590), (5820, 133819), (6790, 114702), (8148, 95585), (8193, 95060), (9506, 81930), (10185, 76468), (10924, 71295), (13580, 57351), (13655, 57036), (14259, 54620), (16386, 47530), (19012, 40965), (19117, 40740), (20370, 38234), (23765, 32772), (27310, 28518)]