51715440

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1$

素因数の和:388

約数の個数: 240

約数和(自身を含む): 205510656

約数和(自身を除く): 153795216

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 31, 35, 36, 40, 42, 45, 48, 56, 60, 62, 63, 70, 72, 80, 84, 90, 93, 105, 112, 120, 124, 126, 140, 144, 155, 168, 180, 186, 210, 217, 240, 248, 252, 279, 280, 310, 315, 331, 336, 360, 372, 420, 434, 465, 496, 504, 558, 560, 620, 630, 651, 662, 720, 744, 840, 868, 930, 993, 1008, 1085, 1116, 1240, 1260, 1302, 1324, 1395, 1488, 1655, 1680, 1736, 1860, 1953, 1986, 2170, 2232, 2317, 2480, 2520, 2604, 2648, 2790, 2979, 3255, 3310, 3472, 3720, 3906, 3972, 4340, 4464, 4634, 4965, 5040, 5208, 5296, 5580, 5958, 6510, 6620, 6951, 7440, 7812, 7944, 8680, 9268, 9765, 9930, 10261, 10416, 11160, 11585, 11916, 13020, 13240, 13902, 14895, 15624, 15888, 17360, 18536, 19530, 19860, 20522, 20853, 22320, 23170, 23832, 26040, 26480, 27804, 29790, 30783, 31248, 34755, 37072, 39060, 39720, 41044, 41706, 46340, 47664, 51305, 52080, 55608, 59580, 61566, 69510, 71827, 78120, 79440, 82088, 83412, 92349, 92680, 102610, 104265, 111216, 119160, 123132, 139020, 143654, 153915, 156240, 164176, 166824, 184698, 185360, 205220, 208530, 215481, 238320, 246264, 278040, 287308, 307830, 333648, 359135, 369396, 410440, 417060, 430962, 461745, 492528, 556080, 574616, 615660, 646443, 718270, 738792, 820880, 834120, 861924, 923490, 1077405, 1149232, 1231320, 1292886, 1436540, 1477584, 1668240, 1723848, 1846980, 2154810, 2462640, 2585772, 2873080, 3232215, 3447696, 3693960, 4309620, 5171544, 5746160, 6464430, 7387920, 8619240, 10343088, 12928860, 17238480, 25857720, 51715440]

約数ペア:

[(1, 51715440), (2, 25857720), (3, 17238480), (4, 12928860), (5, 10343088), (6, 8619240), (7, 7387920), (8, 6464430), (9, 5746160), (10, 5171544), (12, 4309620), (14, 3693960), (15, 3447696), (16, 3232215), (18, 2873080), (20, 2585772), (21, 2462640), (24, 2154810), (28, 1846980), (30, 1723848), (31, 1668240), (35, 1477584), (36, 1436540), (40, 1292886), (42, 1231320), (45, 1149232), (48, 1077405), (56, 923490), (60, 861924), (62, 834120), (63, 820880), (70, 738792), (72, 718270), (80, 646443), (84, 615660), (90, 574616), (93, 556080), (105, 492528), (112, 461745), (120, 430962), (124, 417060), (126, 410440), (140, 369396), (144, 359135), (155, 333648), (168, 307830), (180, 287308), (186, 278040), (210, 246264), (217, 238320), (240, 215481), (248, 208530), (252, 205220), (279, 185360), (280, 184698), (310, 166824), (315, 164176), (331, 156240), (336, 153915), (360, 143654), (372, 139020), (420, 123132), (434, 119160), (465, 111216), (496, 104265), (504, 102610), (558, 92680), (560, 92349), (620, 83412), (630, 82088), (651, 79440), (662, 78120), (720, 71827), (744, 69510), (840, 61566), (868, 59580), (930, 55608), (993, 52080), (1008, 51305), (1085, 47664), (1116, 46340), (1240, 41706), (1260, 41044), (1302, 39720), (1324, 39060), (1395, 37072), (1488, 34755), (1655, 31248), (1680, 30783), (1736, 29790), (1860, 27804), (1953, 26480), (1986, 26040), (2170, 23832), (2232, 23170), (2317, 22320), (2480, 20853), (2520, 20522), (2604, 19860), (2648, 19530), (2790, 18536), (2979, 17360), (3255, 15888), (3310, 15624), (3472, 14895), (3720, 13902), (3906, 13240), (3972, 13020), (4340, 11916), (4464, 11585), (4634, 11160), (4965, 10416), (5040, 10261), (5208, 9930), (5296, 9765), (5580, 9268), (5958, 8680), (6510, 7944), (6620, 7812), (6951, 7440)]