398408080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1\times {\mathrm{109}}^1$

素因数の和:297

約数の個数: 160

約数和(自身を含む): 1096001280

約数和(自身を除く): 697593200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 61, 70, 80, 107, 109, 112, 122, 140, 214, 218, 244, 280, 305, 427, 428, 436, 488, 535, 545, 560, 610, 749, 763, 854, 856, 872, 976, 1070, 1090, 1220, 1498, 1526, 1708, 1712, 1744, 2135, 2140, 2180, 2440, 2996, 3052, 3416, 3745, 3815, 4270, 4280, 4360, 4880, 5992, 6104, 6527, 6649, 6832, 7490, 7630, 8540, 8560, 8720, 11663, 11984, 12208, 13054, 13298, 14980, 15260, 17080, 23326, 26108, 26596, 29960, 30520, 32635, 33245, 34160, 45689, 46543, 46652, 52216, 53192, 58315, 59920, 61040, 65270, 66490, 81641, 91378, 93086, 93304, 104432, 106384, 116630, 130540, 132980, 163282, 182756, 186172, 186608, 228445, 232715, 233260, 261080, 265960, 326564, 365512, 372344, 408205, 456890, 465430, 466520, 522160, 531920, 653128, 711443, 731024, 744688, 816410, 913780, 930860, 933040, 1306256, 1422886, 1632820, 1827560, 1861720, 2845772, 3265640, 3557215, 3655120, 3723440, 4980101, 5691544, 6531280, 7114430, 9960202, 11383088, 14228860, 19920404, 24900505, 28457720, 39840808, 49801010, 56915440, 79681616, 99602020, 199204040, 398408080]

約数ペア:

[(1, 398408080), (2, 199204040), (4, 99602020), (5, 79681616), (7, 56915440), (8, 49801010), (10, 39840808), (14, 28457720), (16, 24900505), (20, 19920404), (28, 14228860), (35, 11383088), (40, 9960202), (56, 7114430), (61, 6531280), (70, 5691544), (80, 4980101), (107, 3723440), (109, 3655120), (112, 3557215), (122, 3265640), (140, 2845772), (214, 1861720), (218, 1827560), (244, 1632820), (280, 1422886), (305, 1306256), (427, 933040), (428, 930860), (436, 913780), (488, 816410), (535, 744688), (545, 731024), (560, 711443), (610, 653128), (749, 531920), (763, 522160), (854, 466520), (856, 465430), (872, 456890), (976, 408205), (1070, 372344), (1090, 365512), (1220, 326564), (1498, 265960), (1526, 261080), (1708, 233260), (1712, 232715), (1744, 228445), (2135, 186608), (2140, 186172), (2180, 182756), (2440, 163282), (2996, 132980), (3052, 130540), (3416, 116630), (3745, 106384), (3815, 104432), (4270, 93304), (4280, 93086), (4360, 91378), (4880, 81641), (5992, 66490), (6104, 65270), (6527, 61040), (6649, 59920), (6832, 58315), (7490, 53192), (7630, 52216), (8540, 46652), (8560, 46543), (8720, 45689), (11663, 34160), (11984, 33245), (12208, 32635), (13054, 30520), (13298, 29960), (14980, 26596), (15260, 26108), (17080, 23326)]