20700960

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1$

素因数の和:187

約数の個数: 192

約数和(自身を含む): 76495104

約数和(自身を除く): 55794144

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 61, 70, 80, 84, 96, 101, 105, 112, 120, 122, 140, 160, 168, 183, 202, 210, 224, 240, 244, 280, 303, 305, 336, 366, 404, 420, 427, 480, 488, 505, 560, 606, 610, 672, 707, 732, 808, 840, 854, 915, 976, 1010, 1120, 1212, 1220, 1281, 1414, 1464, 1515, 1616, 1680, 1708, 1830, 1952, 2020, 2121, 2135, 2424, 2440, 2562, 2828, 2928, 3030, 3232, 3360, 3416, 3535, 3660, 4040, 4242, 4270, 4848, 4880, 5124, 5656, 5856, 6060, 6161, 6405, 6832, 7070, 7320, 8080, 8484, 8540, 9696, 9760, 10248, 10605, 11312, 12120, 12322, 12810, 13664, 14140, 14640, 16160, 16968, 17080, 18483, 20496, 21210, 22624, 24240, 24644, 25620, 28280, 29280, 30805, 33936, 34160, 36966, 40992, 42420, 43127, 48480, 49288, 51240, 56560, 61610, 67872, 68320, 73932, 84840, 86254, 92415, 98576, 102480, 113120, 123220, 129381, 147864, 169680, 172508, 184830, 197152, 204960, 215635, 246440, 258762, 295728, 339360, 345016, 369660, 431270, 492880, 517524, 591456, 646905, 690032, 739320, 862540, 985760, 1035048, 1293810, 1380064, 1478640, 1725080, 2070096, 2587620, 2957280, 3450160, 4140192, 5175240, 6900320, 10350480, 20700960]

約数ペア:

[(1, 20700960), (2, 10350480), (3, 6900320), (4, 5175240), (5, 4140192), (6, 3450160), (7, 2957280), (8, 2587620), (10, 2070096), (12, 1725080), (14, 1478640), (15, 1380064), (16, 1293810), (20, 1035048), (21, 985760), (24, 862540), (28, 739320), (30, 690032), (32, 646905), (35, 591456), (40, 517524), (42, 492880), (48, 431270), (56, 369660), (60, 345016), (61, 339360), (70, 295728), (80, 258762), (84, 246440), (96, 215635), (101, 204960), (105, 197152), (112, 184830), (120, 172508), (122, 169680), (140, 147864), (160, 129381), (168, 123220), (183, 113120), (202, 102480), (210, 98576), (224, 92415), (240, 86254), (244, 84840), (280, 73932), (303, 68320), (305, 67872), (336, 61610), (366, 56560), (404, 51240), (420, 49288), (427, 48480), (480, 43127), (488, 42420), (505, 40992), (560, 36966), (606, 34160), (610, 33936), (672, 30805), (707, 29280), (732, 28280), (808, 25620), (840, 24644), (854, 24240), (915, 22624), (976, 21210), (1010, 20496), (1120, 18483), (1212, 17080), (1220, 16968), (1281, 16160), (1414, 14640), (1464, 14140), (1515, 13664), (1616, 12810), (1680, 12322), (1708, 12120), (1830, 11312), (1952, 10605), (2020, 10248), (2121, 9760), (2135, 9696), (2424, 8540), (2440, 8484), (2562, 8080), (2828, 7320), (2928, 7070), (3030, 6832), (3232, 6405), (3360, 6161), (3416, 6060), (3535, 5856), (3660, 5656), (4040, 5124), (4242, 4880), (4270, 4848)]