1278853920

素因数分解:

$2^5\times 3^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{977}}^1$

素因数の和:1105

約数の個数: 240

約数和(自身を含む): 4562639928

約数和(自身を除く): 3283786008

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 96, 101, 108, 120, 135, 144, 160, 162, 180, 202, 216, 240, 270, 288, 303, 324, 360, 404, 405, 432, 480, 505, 540, 606, 648, 720, 808, 810, 864, 909, 977, 1010, 1080, 1212, 1296, 1440, 1515, 1616, 1620, 1818, 1954, 2020, 2160, 2424, 2592, 2727, 2931, 3030, 3232, 3240, 3636, 3908, 4040, 4320, 4545, 4848, 4885, 5454, 5862, 6060, 6480, 7272, 7816, 8080, 8181, 8793, 9090, 9696, 9770, 10908, 11724, 12120, 12960, 13635, 14544, 14655, 15632, 16160, 16362, 17586, 18180, 19540, 21816, 23448, 24240, 26379, 27270, 29088, 29310, 31264, 32724, 35172, 36360, 39080, 40905, 43632, 43965, 46896, 48480, 52758, 54540, 58620, 65448, 70344, 72720, 78160, 79137, 81810, 87264, 87930, 93792, 98677, 105516, 109080, 117240, 130896, 131895, 140688, 145440, 156320, 158274, 163620, 175860, 197354, 211032, 218160, 234480, 261792, 263790, 281376, 296031, 316548, 327240, 351720, 394708, 395685, 422064, 436320, 468960, 493385, 527580, 592062, 633096, 654480, 703440, 789416, 791370, 844128, 888093, 986770, 1055160, 1184124, 1266192, 1308960, 1406880, 1480155, 1578832, 1582740, 1776186, 1973540, 2110320, 2368248, 2532384, 2664279, 2960310, 3157664, 3165480, 3552372, 3947080, 4220640, 4440465, 4736496, 5328558, 5920620, 6330960, 7104744, 7894160, 7992837, 8880930, 9472992, 10657116, 11841240, 12661920, 13321395, 14209488, 15788320, 15985674, 17761860, 21314232, 23682480, 26642790, 28418976, 31971348, 35523720, 39964185, 42628464, 47364960, 53285580, 63942696, 71047440, 79928370, 85256928, 106571160, 127885392, 142094880, 159856740, 213142320, 255770784, 319713480, 426284640, 639426960, 1278853920]

約数ペア:

[(1, 1278853920), (2, 639426960), (3, 426284640), (4, 319713480), (5, 255770784), (6, 213142320), (8, 159856740), (9, 142094880), (10, 127885392), (12, 106571160), (15, 85256928), (16, 79928370), (18, 71047440), (20, 63942696), (24, 53285580), (27, 47364960), (30, 42628464), (32, 39964185), (36, 35523720), (40, 31971348), (45, 28418976), (48, 26642790), (54, 23682480), (60, 21314232), (72, 17761860), (80, 15985674), (81, 15788320), (90, 14209488), (96, 13321395), (101, 12661920), (108, 11841240), (120, 10657116), (135, 9472992), (144, 8880930), (160, 7992837), (162, 7894160), (180, 7104744), (202, 6330960), (216, 5920620), (240, 5328558), (270, 4736496), (288, 4440465), (303, 4220640), (324, 3947080), (360, 3552372), (404, 3165480), (405, 3157664), (432, 2960310), (480, 2664279), (505, 2532384), (540, 2368248), (606, 2110320), (648, 1973540), (720, 1776186), (808, 1582740), (810, 1578832), (864, 1480155), (909, 1406880), (977, 1308960), (1010, 1266192), (1080, 1184124), (1212, 1055160), (1296, 986770), (1440, 888093), (1515, 844128), (1616, 791370), (1620, 789416), (1818, 703440), (1954, 654480), (2020, 633096), (2160, 592062), (2424, 527580), (2592, 493385), (2727, 468960), (2931, 436320), (3030, 422064), (3232, 395685), (3240, 394708), (3636, 351720), (3908, 327240), (4040, 316548), (4320, 296031), (4545, 281376), (4848, 263790), (4885, 261792), (5454, 234480), (5862, 218160), (6060, 211032), (6480, 197354), (7272, 175860), (7816, 163620), (8080, 158274), (8181, 156320), (8793, 145440), (9090, 140688), (9696, 131895), (9770, 130896), (10908, 117240), (11724, 109080), (12120, 105516), (12960, 98677), (13635, 93792), (14544, 87930), (14655, 87264), (15632, 81810), (16160, 79137), (16362, 78160), (17586, 72720), (18180, 70344), (19540, 65448), (21816, 58620), (23448, 54540), (24240, 52758), (26379, 48480), (27270, 46896), (29088, 43965), (29310, 43632), (31264, 40905), (32724, 39080), (35172, 36360)]