19749120

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1$

素因数の和:200

約数の個数: 144

約数和(自身を含む): 65244480

約数和(自身を除く): 45495360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 37, 40, 48, 60, 64, 74, 80, 96, 111, 120, 128, 139, 148, 160, 185, 192, 222, 240, 256, 278, 296, 320, 370, 384, 417, 444, 480, 555, 556, 592, 640, 695, 740, 768, 834, 888, 960, 1110, 1112, 1184, 1280, 1390, 1480, 1668, 1776, 1920, 2085, 2220, 2224, 2368, 2780, 2960, 3336, 3552, 3840, 4170, 4440, 4448, 4736, 5143, 5560, 5920, 6672, 7104, 8340, 8880, 8896, 9472, 10286, 11120, 11840, 13344, 14208, 15429, 16680, 17760, 17792, 20572, 22240, 23680, 25715, 26688, 28416, 30858, 33360, 35520, 35584, 41144, 44480, 47360, 51430, 53376, 61716, 66720, 71040, 77145, 82288, 88960, 102860, 106752, 123432, 133440, 142080, 154290, 164576, 177920, 205720, 246864, 266880, 308580, 329152, 411440, 493728, 533760, 617160, 658304, 822880, 987456, 1234320, 1316608, 1645760, 1974912, 2468640, 3291520, 3949824, 4937280, 6583040, 9874560, 19749120]

約数ペア:

[(1, 19749120), (2, 9874560), (3, 6583040), (4, 4937280), (5, 3949824), (6, 3291520), (8, 2468640), (10, 1974912), (12, 1645760), (15, 1316608), (16, 1234320), (20, 987456), (24, 822880), (30, 658304), (32, 617160), (37, 533760), (40, 493728), (48, 411440), (60, 329152), (64, 308580), (74, 266880), (80, 246864), (96, 205720), (111, 177920), (120, 164576), (128, 154290), (139, 142080), (148, 133440), (160, 123432), (185, 106752), (192, 102860), (222, 88960), (240, 82288), (256, 77145), (278, 71040), (296, 66720), (320, 61716), (370, 53376), (384, 51430), (417, 47360), (444, 44480), (480, 41144), (555, 35584), (556, 35520), (592, 33360), (640, 30858), (695, 28416), (740, 26688), (768, 25715), (834, 23680), (888, 22240), (960, 20572), (1110, 17792), (1112, 17760), (1184, 16680), (1280, 15429), (1390, 14208), (1480, 13344), (1668, 11840), (1776, 11120), (1920, 10286), (2085, 9472), (2220, 8896), (2224, 8880), (2368, 8340), (2780, 7104), (2960, 6672), (3336, 5920), (3552, 5560), (3840, 5143), (4170, 4736), (4440, 4448)]