261405396

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{379}}^1$

素因数の和:443

約数の個数: 216

約数和(自身を含む): 851497920

約数和(自身を除く): 590092524

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 17, 18, 21, 23, 28, 34, 36, 42, 46, 49, 51, 63, 68, 69, 84, 92, 98, 102, 119, 126, 138, 147, 153, 161, 196, 204, 207, 238, 252, 276, 294, 306, 322, 357, 379, 391, 414, 441, 476, 483, 588, 612, 644, 714, 758, 782, 828, 833, 882, 966, 1071, 1127, 1137, 1173, 1428, 1449, 1516, 1564, 1666, 1764, 1932, 2142, 2254, 2274, 2346, 2499, 2653, 2737, 2898, 3332, 3381, 3411, 3519, 4284, 4508, 4548, 4692, 4998, 5306, 5474, 5796, 6443, 6762, 6822, 7038, 7497, 7959, 8211, 8717, 9996, 10143, 10612, 10948, 12886, 13524, 13644, 14076, 14994, 15918, 16422, 17434, 18571, 19159, 19329, 20286, 23877, 24633, 25772, 26151, 29988, 31836, 32844, 34868, 37142, 38318, 38658, 40572, 45101, 47754, 49266, 52302, 55713, 57477, 57987, 61019, 74284, 76636, 77316, 78453, 90202, 95508, 98532, 104604, 111426, 114954, 115974, 122038, 135303, 148189, 156906, 167139, 172431, 180404, 183057, 222852, 229908, 231948, 244076, 270606, 296378, 313812, 315707, 334278, 344862, 366114, 405909, 427133, 444567, 541212, 549171, 592756, 631414, 668556, 689724, 732228, 811818, 854266, 889134, 947121, 1037323, 1098342, 1262828, 1281399, 1333701, 1623636, 1708532, 1778268, 1894242, 2074646, 2196684, 2562798, 2667402, 2841363, 3111969, 3788484, 3844197, 4149292, 5125596, 5334804, 5682726, 6223938, 7261261, 7688394, 9335907, 11365452, 12447876, 14522522, 15376788, 18671814, 21783783, 29045044, 37343628, 43567566, 65351349, 87135132, 130702698, 261405396]

約数ペア:

[(1, 261405396), (2, 130702698), (3, 87135132), (4, 65351349), (6, 43567566), (7, 37343628), (9, 29045044), (12, 21783783), (14, 18671814), (17, 15376788), (18, 14522522), (21, 12447876), (23, 11365452), (28, 9335907), (34, 7688394), (36, 7261261), (42, 6223938), (46, 5682726), (49, 5334804), (51, 5125596), (63, 4149292), (68, 3844197), (69, 3788484), (84, 3111969), (92, 2841363), (98, 2667402), (102, 2562798), (119, 2196684), (126, 2074646), (138, 1894242), (147, 1778268), (153, 1708532), (161, 1623636), (196, 1333701), (204, 1281399), (207, 1262828), (238, 1098342), (252, 1037323), (276, 947121), (294, 889134), (306, 854266), (322, 811818), (357, 732228), (379, 689724), (391, 668556), (414, 631414), (441, 592756), (476, 549171), (483, 541212), (588, 444567), (612, 427133), (644, 405909), (714, 366114), (758, 344862), (782, 334278), (828, 315707), (833, 313812), (882, 296378), (966, 270606), (1071, 244076), (1127, 231948), (1137, 229908), (1173, 222852), (1428, 183057), (1449, 180404), (1516, 172431), (1564, 167139), (1666, 156906), (1764, 148189), (1932, 135303), (2142, 122038), (2254, 115974), (2274, 114954), (2346, 111426), (2499, 104604), (2653, 98532), (2737, 95508), (2898, 90202), (3332, 78453), (3381, 77316), (3411, 76636), (3519, 74284), (4284, 61019), (4508, 57987), (4548, 57477), (4692, 55713), (4998, 52302), (5306, 49266), (5474, 47754), (5796, 45101), (6443, 40572), (6762, 38658), (6822, 38318), (7038, 37142), (7497, 34868), (7959, 32844), (8211, 31836), (8717, 29988), (9996, 26151), (10143, 25772), (10612, 24633), (10948, 23877), (12886, 20286), (13524, 19329), (13644, 19159), (14076, 18571), (14994, 17434), (15918, 16422)]