19778640

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{193}}^1$

素因数の和:277

約数の個数: 160

約数和(自身を含む): 71590656

約数和(自身を除く): 51812016

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 61, 70, 80, 84, 105, 112, 120, 122, 140, 168, 183, 193, 210, 240, 244, 280, 305, 336, 366, 386, 420, 427, 488, 560, 579, 610, 732, 772, 840, 854, 915, 965, 976, 1158, 1220, 1281, 1351, 1464, 1544, 1680, 1708, 1830, 1930, 2135, 2316, 2440, 2562, 2702, 2895, 2928, 3088, 3416, 3660, 3860, 4053, 4270, 4632, 4880, 5124, 5404, 5790, 6405, 6755, 6832, 7320, 7720, 8106, 8540, 9264, 10248, 10808, 11580, 11773, 12810, 13510, 14640, 15440, 16212, 17080, 20265, 20496, 21616, 23160, 23546, 25620, 27020, 32424, 34160, 35319, 40530, 46320, 47092, 51240, 54040, 58865, 64848, 70638, 81060, 82411, 94184, 102480, 108080, 117730, 141276, 162120, 164822, 176595, 188368, 235460, 247233, 282552, 324240, 329644, 353190, 412055, 470920, 494466, 565104, 659288, 706380, 824110, 941840, 988932, 1236165, 1318576, 1412760, 1648220, 1977864, 2472330, 2825520, 3296440, 3955728, 4944660, 6592880, 9889320, 19778640]

約数ペア:

[(1, 19778640), (2, 9889320), (3, 6592880), (4, 4944660), (5, 3955728), (6, 3296440), (7, 2825520), (8, 2472330), (10, 1977864), (12, 1648220), (14, 1412760), (15, 1318576), (16, 1236165), (20, 988932), (21, 941840), (24, 824110), (28, 706380), (30, 659288), (35, 565104), (40, 494466), (42, 470920), (48, 412055), (56, 353190), (60, 329644), (61, 324240), (70, 282552), (80, 247233), (84, 235460), (105, 188368), (112, 176595), (120, 164822), (122, 162120), (140, 141276), (168, 117730), (183, 108080), (193, 102480), (210, 94184), (240, 82411), (244, 81060), (280, 70638), (305, 64848), (336, 58865), (366, 54040), (386, 51240), (420, 47092), (427, 46320), (488, 40530), (560, 35319), (579, 34160), (610, 32424), (732, 27020), (772, 25620), (840, 23546), (854, 23160), (915, 21616), (965, 20496), (976, 20265), (1158, 17080), (1220, 16212), (1281, 15440), (1351, 14640), (1464, 13510), (1544, 12810), (1680, 11773), (1708, 11580), (1830, 10808), (1930, 10248), (2135, 9264), (2316, 8540), (2440, 8106), (2562, 7720), (2702, 7320), (2895, 6832), (2928, 6755), (3088, 6405), (3416, 5790), (3660, 5404), (3860, 5124), (4053, 4880), (4270, 4632)]