18896640

素因数分解:

$2^8\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1$

素因数の和:87

約数の個数: 288

約数和(自身を含む): 74565120

約数和(自身を除く): 55668480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 19, 20, 21, 24, 28, 30, 32, 35, 37, 38, 40, 42, 48, 56, 57, 60, 64, 70, 74, 76, 80, 84, 95, 96, 105, 111, 112, 114, 120, 128, 133, 140, 148, 152, 160, 168, 185, 190, 192, 210, 222, 224, 228, 240, 256, 259, 266, 280, 285, 296, 304, 320, 336, 370, 380, 384, 399, 420, 444, 448, 456, 480, 518, 532, 555, 560, 570, 592, 608, 640, 665, 672, 703, 740, 760, 768, 777, 798, 840, 888, 896, 912, 960, 1036, 1064, 1110, 1120, 1140, 1184, 1216, 1280, 1295, 1330, 1344, 1406, 1480, 1520, 1554, 1596, 1680, 1776, 1792, 1824, 1920, 1995, 2072, 2109, 2128, 2220, 2240, 2280, 2368, 2432, 2590, 2660, 2688, 2812, 2960, 3040, 3108, 3192, 3360, 3515, 3552, 3648, 3840, 3885, 3990, 4144, 4218, 4256, 4440, 4480, 4560, 4736, 4864, 4921, 5180, 5320, 5376, 5624, 5920, 6080, 6216, 6384, 6720, 7030, 7104, 7296, 7770, 7980, 8288, 8436, 8512, 8880, 8960, 9120, 9472, 9842, 10360, 10545, 10640, 11248, 11840, 12160, 12432, 12768, 13440, 14060, 14208, 14592, 14763, 15540, 15960, 16576, 16872, 17024, 17760, 18240, 19684, 20720, 21090, 21280, 22496, 23680, 24320, 24605, 24864, 25536, 26880, 28120, 28416, 29526, 31080, 31920, 33152, 33744, 34048, 35520, 36480, 39368, 41440, 42180, 42560, 44992, 47360, 49210, 49728, 51072, 56240, 59052, 62160, 63840, 66304, 67488, 71040, 72960, 73815, 78736, 82880, 84360, 85120, 89984, 98420, 99456, 102144, 112480, 118104, 124320, 127680, 134976, 142080, 147630, 157472, 165760, 168720, 170240, 179968, 196840, 198912, 224960, 236208, 248640, 255360, 269952, 295260, 314944, 331520, 337440, 393680, 449920, 472416, 497280, 510720, 539904, 590520, 629888, 674880, 787360, 899840, 944832, 994560, 1181040, 1259776, 1349760, 1574720, 1889664, 2362080, 2699520, 3149440, 3779328, 4724160, 6298880, 9448320, 18896640]

約数ペア:

[(1, 18896640), (2, 9448320), (3, 6298880), (4, 4724160), (5, 3779328), (6, 3149440), (7, 2699520), (8, 2362080), (10, 1889664), (12, 1574720), (14, 1349760), (15, 1259776), (16, 1181040), (19, 994560), (20, 944832), (21, 899840), (24, 787360), (28, 674880), (30, 629888), (32, 590520), (35, 539904), (37, 510720), (38, 497280), (40, 472416), (42, 449920), (48, 393680), (56, 337440), (57, 331520), (60, 314944), (64, 295260), (70, 269952), (74, 255360), (76, 248640), (80, 236208), (84, 224960), (95, 198912), (96, 196840), (105, 179968), (111, 170240), (112, 168720), (114, 165760), (120, 157472), (128, 147630), (133, 142080), (140, 134976), (148, 127680), (152, 124320), (160, 118104), (168, 112480), (185, 102144), (190, 99456), (192, 98420), (210, 89984), (222, 85120), (224, 84360), (228, 82880), (240, 78736), (256, 73815), (259, 72960), (266, 71040), (280, 67488), (285, 66304), (296, 63840), (304, 62160), (320, 59052), (336, 56240), (370, 51072), (380, 49728), (384, 49210), (399, 47360), (420, 44992), (444, 42560), (448, 42180), (456, 41440), (480, 39368), (518, 36480), (532, 35520), (555, 34048), (560, 33744), (570, 33152), (592, 31920), (608, 31080), (640, 29526), (665, 28416), (672, 28120), (703, 26880), (740, 25536), (760, 24864), (768, 24605), (777, 24320), (798, 23680), (840, 22496), (888, 21280), (896, 21090), (912, 20720), (960, 19684), (1036, 18240), (1064, 17760), (1110, 17024), (1120, 16872), (1140, 16576), (1184, 15960), (1216, 15540), (1280, 14763), (1295, 14592), (1330, 14208), (1344, 14060), (1406, 13440), (1480, 12768), (1520, 12432), (1554, 12160), (1596, 11840), (1680, 11248), (1776, 10640), (1792, 10545), (1824, 10360), (1920, 9842), (1995, 9472), (2072, 9120), (2109, 8960), (2128, 8880), (2220, 8512), (2240, 8436), (2280, 8288), (2368, 7980), (2432, 7770), (2590, 7296), (2660, 7104), (2688, 7030), (2812, 6720), (2960, 6384), (3040, 6216), (3108, 6080), (3192, 5920), (3360, 5624), (3515, 5376), (3552, 5320), (3648, 5180), (3840, 4921), (3885, 4864), (3990, 4736), (4144, 4560), (4218, 4480), (4256, 4440)]