2015201520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{499}}^1$

素因数の和:668

約数の個数: 240

約数和(自身を含む): 6963840000

約数和(自身を除く): 4948638480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 71, 72, 79, 80, 90, 120, 142, 144, 158, 180, 213, 237, 240, 284, 316, 355, 360, 395, 426, 474, 499, 568, 632, 639, 710, 711, 720, 790, 852, 948, 998, 1065, 1136, 1185, 1264, 1278, 1420, 1422, 1497, 1580, 1704, 1896, 1996, 2130, 2370, 2495, 2556, 2840, 2844, 2994, 3160, 3195, 3408, 3555, 3792, 3992, 4260, 4491, 4740, 4990, 5112, 5609, 5680, 5688, 5988, 6320, 6390, 7110, 7485, 7984, 8520, 8982, 9480, 9980, 10224, 11218, 11376, 11976, 12780, 14220, 14970, 16827, 17040, 17964, 18960, 19960, 22436, 22455, 23952, 25560, 28045, 28440, 29940, 33654, 35429, 35928, 39421, 39920, 44872, 44910, 50481, 51120, 56090, 56880, 59880, 67308, 70858, 71856, 78842, 84135, 89744, 89820, 100962, 106287, 112180, 118263, 119760, 134616, 141716, 157684, 168270, 177145, 179640, 197105, 201924, 212574, 224360, 236526, 252405, 269232, 283432, 315368, 318861, 336540, 354290, 354789, 359280, 394210, 403848, 425148, 448720, 473052, 504810, 531435, 566864, 591315, 630736, 637722, 673080, 708580, 709578, 788420, 807696, 850296, 946104, 1009620, 1062870, 1182630, 1275444, 1346160, 1417160, 1419156, 1576840, 1594305, 1700592, 1773945, 1892208, 2019240, 2125740, 2365260, 2550888, 2798891, 2834320, 2838312, 3153680, 3188610, 3547890, 4038480, 4251480, 4730520, 5101776, 5597782, 5676624, 6377220, 7095780, 8396673, 8502960, 9461040, 11195564, 12754440, 13994455, 14191560, 16793346, 22391128, 25190019, 25508880, 27988910, 28383120, 33586692, 41983365, 44782256, 50380038, 55977820, 67173384, 83966730, 100760076, 111955640, 125950095, 134346768, 167933460, 201520152, 223911280, 251900190, 335866920, 403040304, 503800380, 671733840, 1007600760, 2015201520]

約数ペア:

[(1, 2015201520), (2, 1007600760), (3, 671733840), (4, 503800380), (5, 403040304), (6, 335866920), (8, 251900190), (9, 223911280), (10, 201520152), (12, 167933460), (15, 134346768), (16, 125950095), (18, 111955640), (20, 100760076), (24, 83966730), (30, 67173384), (36, 55977820), (40, 50380038), (45, 44782256), (48, 41983365), (60, 33586692), (71, 28383120), (72, 27988910), (79, 25508880), (80, 25190019), (90, 22391128), (120, 16793346), (142, 14191560), (144, 13994455), (158, 12754440), (180, 11195564), (213, 9461040), (237, 8502960), (240, 8396673), (284, 7095780), (316, 6377220), (355, 5676624), (360, 5597782), (395, 5101776), (426, 4730520), (474, 4251480), (499, 4038480), (568, 3547890), (632, 3188610), (639, 3153680), (710, 2838312), (711, 2834320), (720, 2798891), (790, 2550888), (852, 2365260), (948, 2125740), (998, 2019240), (1065, 1892208), (1136, 1773945), (1185, 1700592), (1264, 1594305), (1278, 1576840), (1420, 1419156), (1422, 1417160), (1497, 1346160), (1580, 1275444), (1704, 1182630), (1896, 1062870), (1996, 1009620), (2130, 946104), (2370, 850296), (2495, 807696), (2556, 788420), (2840, 709578), (2844, 708580), (2994, 673080), (3160, 637722), (3195, 630736), (3408, 591315), (3555, 566864), (3792, 531435), (3992, 504810), (4260, 473052), (4491, 448720), (4740, 425148), (4990, 403848), (5112, 394210), (5609, 359280), (5680, 354789), (5688, 354290), (5988, 336540), (6320, 318861), (6390, 315368), (7110, 283432), (7485, 269232), (7984, 252405), (8520, 236526), (8982, 224360), (9480, 212574), (9980, 201924), (10224, 197105), (11218, 179640), (11376, 177145), (11976, 168270), (12780, 157684), (14220, 141716), (14970, 134616), (16827, 119760), (17040, 118263), (17964, 112180), (18960, 106287), (19960, 100962), (22436, 89820), (22455, 89744), (23952, 84135), (25560, 78842), (28045, 71856), (28440, 70858), (29940, 67308), (33654, 59880), (35429, 56880), (35928, 56090), (39421, 51120), (39920, 50481), (44872, 44910)]