81137980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1$

素因数の和:152

約数の個数: 192

約数和(自身を含む): 232243200

約数和(自身を除く): 151105220

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 19, 20, 22, 28, 35, 38, 44, 47, 55, 59, 70, 76, 77, 94, 95, 110, 118, 133, 140, 154, 188, 190, 209, 220, 235, 236, 266, 295, 308, 329, 380, 385, 413, 418, 470, 517, 532, 590, 649, 658, 665, 770, 826, 836, 893, 940, 1034, 1045, 1121, 1180, 1298, 1316, 1330, 1463, 1540, 1645, 1652, 1786, 2065, 2068, 2090, 2242, 2585, 2596, 2660, 2773, 2926, 3245, 3290, 3572, 3619, 4130, 4180, 4465, 4484, 4543, 5170, 5546, 5605, 5852, 6251, 6490, 6580, 7238, 7315, 7847, 8260, 8930, 9086, 9823, 10340, 11092, 11210, 12331, 12502, 12980, 13865, 14476, 14630, 15694, 17860, 18095, 18172, 19411, 19646, 22420, 22715, 24662, 25004, 27730, 29260, 30503, 31255, 31388, 36190, 38822, 39235, 39292, 45430, 49115, 49324, 52687, 55460, 61006, 61655, 62510, 68761, 72380, 77644, 78470, 86317, 90860, 97055, 98230, 105374, 122012, 123310, 125020, 137522, 152515, 156940, 172634, 194110, 196460, 210748, 213521, 246620, 263435, 275044, 305030, 343805, 345268, 368809, 388220, 427042, 431585, 526870, 579557, 610060, 687610, 737618, 854084, 863170, 1053740, 1067605, 1159114, 1375220, 1475236, 1726340, 1844045, 2135210, 2318228, 2897785, 3688090, 4056899, 4270420, 5795570, 7376180, 8113798, 11591140, 16227596, 20284495, 40568990, 81137980]

約数ペア:

[(1, 81137980), (2, 40568990), (4, 20284495), (5, 16227596), (7, 11591140), (10, 8113798), (11, 7376180), (14, 5795570), (19, 4270420), (20, 4056899), (22, 3688090), (28, 2897785), (35, 2318228), (38, 2135210), (44, 1844045), (47, 1726340), (55, 1475236), (59, 1375220), (70, 1159114), (76, 1067605), (77, 1053740), (94, 863170), (95, 854084), (110, 737618), (118, 687610), (133, 610060), (140, 579557), (154, 526870), (188, 431585), (190, 427042), (209, 388220), (220, 368809), (235, 345268), (236, 343805), (266, 305030), (295, 275044), (308, 263435), (329, 246620), (380, 213521), (385, 210748), (413, 196460), (418, 194110), (470, 172634), (517, 156940), (532, 152515), (590, 137522), (649, 125020), (658, 123310), (665, 122012), (770, 105374), (826, 98230), (836, 97055), (893, 90860), (940, 86317), (1034, 78470), (1045, 77644), (1121, 72380), (1180, 68761), (1298, 62510), (1316, 61655), (1330, 61006), (1463, 55460), (1540, 52687), (1645, 49324), (1652, 49115), (1786, 45430), (2065, 39292), (2068, 39235), (2090, 38822), (2242, 36190), (2585, 31388), (2596, 31255), (2660, 30503), (2773, 29260), (2926, 27730), (3245, 25004), (3290, 24662), (3572, 22715), (3619, 22420), (4130, 19646), (4180, 19411), (4465, 18172), (4484, 18095), (4543, 17860), (5170, 15694), (5546, 14630), (5605, 14476), (5852, 13865), (6251, 12980), (6490, 12502), (6580, 12331), (7238, 11210), (7315, 11092), (7847, 10340), (8260, 9823), (8930, 9086)]