1280278860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{443}}^1\times {\mathrm{983}}^1$

素因数の和:1452

約数の個数: 144

約数和(自身を含む): 4183716096

約数和(自身を除く): 2903437236

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 443, 490, 588, 735, 886, 980, 983, 1329, 1470, 1772, 1966, 2215, 2658, 2940, 2949, 3101, 3932, 4430, 4915, 5316, 5898, 6202, 6645, 6881, 8860, 9303, 9830, 11796, 12404, 13290, 13762, 14745, 15505, 18606, 19660, 20643, 21707, 26580, 27524, 29490, 31010, 34405, 37212, 41286, 43414, 46515, 48167, 58980, 62020, 65121, 68810, 82572, 86828, 93030, 96334, 103215, 108535, 130242, 137620, 144501, 186060, 192668, 206430, 217070, 240835, 260484, 289002, 325605, 412860, 434140, 435469, 481670, 578004, 651210, 722505, 870938, 963340, 1302420, 1306407, 1445010, 1741876, 2177345, 2612814, 2890020, 3048283, 4354690, 5225628, 6096566, 6532035, 8709380, 9144849, 12193132, 13064070, 15241415, 18289698, 21337981, 26128140, 30482830, 36579396, 42675962, 45724245, 60965660, 64013943, 85351924, 91448490, 106689905, 128027886, 182896980, 213379810, 256055772, 320069715, 426759620, 640139430, 1280278860]

約数ペア:

[(1, 1280278860), (2, 640139430), (3, 426759620), (4, 320069715), (5, 256055772), (6, 213379810), (7, 182896980), (10, 128027886), (12, 106689905), (14, 91448490), (15, 85351924), (20, 64013943), (21, 60965660), (28, 45724245), (30, 42675962), (35, 36579396), (42, 30482830), (49, 26128140), (60, 21337981), (70, 18289698), (84, 15241415), (98, 13064070), (105, 12193132), (140, 9144849), (147, 8709380), (196, 6532035), (210, 6096566), (245, 5225628), (294, 4354690), (420, 3048283), (443, 2890020), (490, 2612814), (588, 2177345), (735, 1741876), (886, 1445010), (980, 1306407), (983, 1302420), (1329, 963340), (1470, 870938), (1772, 722505), (1966, 651210), (2215, 578004), (2658, 481670), (2940, 435469), (2949, 434140), (3101, 412860), (3932, 325605), (4430, 289002), (4915, 260484), (5316, 240835), (5898, 217070), (6202, 206430), (6645, 192668), (6881, 186060), (8860, 144501), (9303, 137620), (9830, 130242), (11796, 108535), (12404, 103215), (13290, 96334), (13762, 93030), (14745, 86828), (15505, 82572), (18606, 68810), (19660, 65121), (20643, 62020), (21707, 58980), (26580, 48167), (27524, 46515), (29490, 43414), (31010, 41286), (34405, 37212)]