2142857640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{7481}}^1$

素因数の和:7544

約数の個数: 256

約数和(自身を含む): 8274493440

約数和(自身を除く): 6131635800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 24, 28, 30, 31, 33, 35, 40, 42, 44, 55, 56, 60, 62, 66, 70, 77, 84, 88, 93, 105, 110, 120, 124, 132, 140, 154, 155, 165, 168, 186, 210, 217, 220, 231, 248, 264, 280, 308, 310, 330, 341, 372, 385, 420, 434, 440, 462, 465, 616, 620, 651, 660, 682, 744, 770, 840, 868, 924, 930, 1023, 1085, 1155, 1240, 1302, 1320, 1364, 1540, 1705, 1736, 1848, 1860, 2046, 2170, 2310, 2387, 2604, 2728, 3080, 3255, 3410, 3720, 4092, 4340, 4620, 4774, 5115, 5208, 6510, 6820, 7161, 7481, 8184, 8680, 9240, 9548, 10230, 11935, 13020, 13640, 14322, 14962, 19096, 20460, 22443, 23870, 26040, 28644, 29924, 35805, 37405, 40920, 44886, 47740, 52367, 57288, 59848, 71610, 74810, 82291, 89772, 95480, 104734, 112215, 143220, 149620, 157101, 164582, 179544, 209468, 224430, 231911, 246873, 261835, 286440, 299240, 314202, 329164, 411455, 418936, 448860, 463822, 493746, 523670, 576037, 628404, 658328, 695733, 785505, 822910, 897720, 927644, 987492, 1047340, 1152074, 1159555, 1234365, 1256808, 1391466, 1571010, 1623377, 1645820, 1728111, 1855288, 1974984, 2094680, 2304148, 2319110, 2468730, 2551021, 2782932, 2880185, 3142020, 3246754, 3291640, 3456222, 3478665, 4608296, 4638220, 4870131, 4937460, 5102042, 5565864, 5760370, 6284040, 6493508, 6912444, 6957330, 7653063, 8116885, 8640555, 9276440, 9740262, 9874920, 10204084, 11520740, 12755105, 12987016, 13824888, 13914660, 15306126, 16233770, 17281110, 17857147, 19480524, 20408168, 23041480, 24350655, 25510210, 27829320, 30612252, 32467540, 34562220, 35714294, 38265315, 38961048, 48701310, 51020420, 53571441, 61224504, 64935080, 69124440, 71428588, 76530630, 89285735, 97402620, 102040840, 107142882, 142857176, 153061260, 178571470, 194805240, 214285764, 267857205, 306122520, 357142940, 428571528, 535714410, 714285880, 1071428820, 2142857640]

約数ペア:

[(1, 2142857640), (2, 1071428820), (3, 714285880), (4, 535714410), (5, 428571528), (6, 357142940), (7, 306122520), (8, 267857205), (10, 214285764), (11, 194805240), (12, 178571470), (14, 153061260), (15, 142857176), (20, 107142882), (21, 102040840), (22, 97402620), (24, 89285735), (28, 76530630), (30, 71428588), (31, 69124440), (33, 64935080), (35, 61224504), (40, 53571441), (42, 51020420), (44, 48701310), (55, 38961048), (56, 38265315), (60, 35714294), (62, 34562220), (66, 32467540), (70, 30612252), (77, 27829320), (84, 25510210), (88, 24350655), (93, 23041480), (105, 20408168), (110, 19480524), (120, 17857147), (124, 17281110), (132, 16233770), (140, 15306126), (154, 13914660), (155, 13824888), (165, 12987016), (168, 12755105), (186, 11520740), (210, 10204084), (217, 9874920), (220, 9740262), (231, 9276440), (248, 8640555), (264, 8116885), (280, 7653063), (308, 6957330), (310, 6912444), (330, 6493508), (341, 6284040), (372, 5760370), (385, 5565864), (420, 5102042), (434, 4937460), (440, 4870131), (462, 4638220), (465, 4608296), (616, 3478665), (620, 3456222), (651, 3291640), (660, 3246754), (682, 3142020), (744, 2880185), (770, 2782932), (840, 2551021), (868, 2468730), (924, 2319110), (930, 2304148), (1023, 2094680), (1085, 1974984), (1155, 1855288), (1240, 1728111), (1302, 1645820), (1320, 1623377), (1364, 1571010), (1540, 1391466), (1705, 1256808), (1736, 1234365), (1848, 1159555), (1860, 1152074), (2046, 1047340), (2170, 987492), (2310, 927644), (2387, 897720), (2604, 822910), (2728, 785505), (3080, 695733), (3255, 658328), (3410, 628404), (3720, 576037), (4092, 523670), (4340, 493746), (4620, 463822), (4774, 448860), (5115, 418936), (5208, 411455), (6510, 329164), (6820, 314202), (7161, 299240), (7481, 286440), (8184, 261835), (8680, 246873), (9240, 231911), (9548, 224430), (10230, 209468), (11935, 179544), (13020, 164582), (13640, 157101), (14322, 149620), (14962, 143220), (19096, 112215), (20460, 104734), (22443, 95480), (23870, 89772), (26040, 82291), (28644, 74810), (29924, 71610), (35805, 59848), (37405, 57288), (40920, 52367), (44886, 47740)]