281531520

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{1321}}^1$

素因数の和:1383

約数の個数: 192

約数和(自身を含む): 999194040

約数和(自身を除く): 717662520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 37, 40, 45, 48, 60, 64, 72, 74, 80, 90, 96, 111, 120, 128, 144, 148, 160, 180, 185, 192, 222, 240, 288, 296, 320, 333, 360, 370, 384, 444, 480, 555, 576, 592, 640, 666, 720, 740, 888, 960, 1110, 1152, 1184, 1321, 1332, 1440, 1480, 1665, 1776, 1920, 2220, 2368, 2642, 2664, 2880, 2960, 3330, 3552, 3963, 4440, 4736, 5284, 5328, 5760, 5920, 6605, 6660, 7104, 7926, 8880, 10568, 10656, 11840, 11889, 13210, 13320, 14208, 15852, 17760, 19815, 21136, 21312, 23680, 23778, 26420, 26640, 31704, 35520, 39630, 42272, 42624, 47556, 48877, 52840, 53280, 59445, 63408, 71040, 79260, 84544, 95112, 97754, 105680, 106560, 118890, 126816, 146631, 158520, 169088, 190224, 195508, 211360, 213120, 237780, 244385, 253632, 293262, 317040, 380448, 391016, 422720, 439893, 475560, 488770, 507264, 586524, 634080, 733155, 760896, 782032, 845440, 879786, 951120, 977540, 1173048, 1268160, 1466310, 1521792, 1564064, 1759572, 1902240, 1955080, 2199465, 2346096, 2536320, 2932620, 3128128, 3519144, 3804480, 3910160, 4398930, 4692192, 5865240, 6256256, 7038288, 7608960, 7820320, 8797860, 9384384, 11730480, 14076576, 15640640, 17595720, 18768768, 23460960, 28153152, 31281280, 35191440, 46921920, 56306304, 70382880, 93843840, 140765760, 281531520]

約数ペア:

[(1, 281531520), (2, 140765760), (3, 93843840), (4, 70382880), (5, 56306304), (6, 46921920), (8, 35191440), (9, 31281280), (10, 28153152), (12, 23460960), (15, 18768768), (16, 17595720), (18, 15640640), (20, 14076576), (24, 11730480), (30, 9384384), (32, 8797860), (36, 7820320), (37, 7608960), (40, 7038288), (45, 6256256), (48, 5865240), (60, 4692192), (64, 4398930), (72, 3910160), (74, 3804480), (80, 3519144), (90, 3128128), (96, 2932620), (111, 2536320), (120, 2346096), (128, 2199465), (144, 1955080), (148, 1902240), (160, 1759572), (180, 1564064), (185, 1521792), (192, 1466310), (222, 1268160), (240, 1173048), (288, 977540), (296, 951120), (320, 879786), (333, 845440), (360, 782032), (370, 760896), (384, 733155), (444, 634080), (480, 586524), (555, 507264), (576, 488770), (592, 475560), (640, 439893), (666, 422720), (720, 391016), (740, 380448), (888, 317040), (960, 293262), (1110, 253632), (1152, 244385), (1184, 237780), (1321, 213120), (1332, 211360), (1440, 195508), (1480, 190224), (1665, 169088), (1776, 158520), (1920, 146631), (2220, 126816), (2368, 118890), (2642, 106560), (2664, 105680), (2880, 97754), (2960, 95112), (3330, 84544), (3552, 79260), (3963, 71040), (4440, 63408), (4736, 59445), (5284, 53280), (5328, 52840), (5760, 48877), (5920, 47556), (6605, 42624), (6660, 42272), (7104, 39630), (7926, 35520), (8880, 31704), (10568, 26640), (10656, 26420), (11840, 23778), (11889, 23680), (13210, 21312), (13320, 21136), (14208, 19815), (15852, 17760)]