77979720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{193}}^1$

素因数の和:264

約数の個数: 256

約数和(自身を含む): 297239040

約数和(自身を除く): 219259320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 37, 39, 40, 42, 52, 56, 60, 65, 70, 74, 78, 84, 91, 104, 105, 111, 120, 130, 140, 148, 156, 168, 182, 185, 193, 195, 210, 222, 259, 260, 273, 280, 296, 312, 364, 370, 386, 390, 420, 444, 455, 481, 518, 520, 546, 555, 579, 728, 740, 772, 777, 780, 840, 888, 910, 962, 965, 1036, 1092, 1110, 1158, 1295, 1351, 1365, 1443, 1480, 1544, 1554, 1560, 1820, 1924, 1930, 2072, 2184, 2220, 2316, 2405, 2509, 2590, 2702, 2730, 2886, 2895, 3108, 3367, 3640, 3848, 3860, 3885, 4053, 4440, 4632, 4810, 5018, 5180, 5404, 5460, 5772, 5790, 6216, 6734, 6755, 7141, 7215, 7527, 7720, 7770, 8106, 9620, 10036, 10101, 10360, 10808, 10920, 11544, 11580, 12545, 13468, 13510, 14282, 14430, 15054, 15540, 16212, 16835, 17563, 19240, 20072, 20202, 20265, 21423, 23160, 25090, 26936, 27020, 28564, 28860, 30108, 31080, 32424, 33670, 35126, 35705, 37635, 40404, 40530, 42846, 49987, 50180, 50505, 52689, 54040, 57128, 57720, 60216, 67340, 70252, 71410, 75270, 80808, 81060, 85692, 87815, 92833, 99974, 100360, 101010, 105378, 107115, 134680, 140504, 142820, 149961, 150540, 162120, 171384, 175630, 185666, 199948, 202020, 210756, 214230, 249935, 263445, 278499, 285640, 299922, 301080, 351260, 371332, 399896, 404040, 421512, 428460, 464165, 499870, 526890, 556998, 599844, 649831, 702520, 742664, 749805, 856920, 928330, 999740, 1053780, 1113996, 1199688, 1299662, 1392495, 1499610, 1856660, 1949493, 1999480, 2107560, 2227992, 2599324, 2784990, 2999220, 3249155, 3713320, 3898986, 5198648, 5569980, 5998440, 6498310, 7797972, 9747465, 11139960, 12996620, 15595944, 19494930, 25993240, 38989860, 77979720]

約数ペア:

[(1, 77979720), (2, 38989860), (3, 25993240), (4, 19494930), (5, 15595944), (6, 12996620), (7, 11139960), (8, 9747465), (10, 7797972), (12, 6498310), (13, 5998440), (14, 5569980), (15, 5198648), (20, 3898986), (21, 3713320), (24, 3249155), (26, 2999220), (28, 2784990), (30, 2599324), (35, 2227992), (37, 2107560), (39, 1999480), (40, 1949493), (42, 1856660), (52, 1499610), (56, 1392495), (60, 1299662), (65, 1199688), (70, 1113996), (74, 1053780), (78, 999740), (84, 928330), (91, 856920), (104, 749805), (105, 742664), (111, 702520), (120, 649831), (130, 599844), (140, 556998), (148, 526890), (156, 499870), (168, 464165), (182, 428460), (185, 421512), (193, 404040), (195, 399896), (210, 371332), (222, 351260), (259, 301080), (260, 299922), (273, 285640), (280, 278499), (296, 263445), (312, 249935), (364, 214230), (370, 210756), (386, 202020), (390, 199948), (420, 185666), (444, 175630), (455, 171384), (481, 162120), (518, 150540), (520, 149961), (546, 142820), (555, 140504), (579, 134680), (728, 107115), (740, 105378), (772, 101010), (777, 100360), (780, 99974), (840, 92833), (888, 87815), (910, 85692), (962, 81060), (965, 80808), (1036, 75270), (1092, 71410), (1110, 70252), (1158, 67340), (1295, 60216), (1351, 57720), (1365, 57128), (1443, 54040), (1480, 52689), (1544, 50505), (1554, 50180), (1560, 49987), (1820, 42846), (1924, 40530), (1930, 40404), (2072, 37635), (2184, 35705), (2220, 35126), (2316, 33670), (2405, 32424), (2509, 31080), (2590, 30108), (2702, 28860), (2730, 28564), (2886, 27020), (2895, 26936), (3108, 25090), (3367, 23160), (3640, 21423), (3848, 20265), (3860, 20202), (3885, 20072), (4053, 19240), (4440, 17563), (4632, 16835), (4810, 16212), (5018, 15540), (5180, 15054), (5404, 14430), (5460, 14282), (5772, 13510), (5790, 13468), (6216, 12545), (6734, 11580), (6755, 11544), (7141, 10920), (7215, 10808), (7527, 10360), (7720, 10101), (7770, 10036), (8106, 9620)]