399662720

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1429}}^1$

素因数の和:1490

約数の個数: 128

約数和(自身を含む): 1050192000

約数和(自身を除く): 650529280

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 23, 32, 38, 40, 46, 64, 76, 80, 92, 95, 115, 128, 152, 160, 184, 190, 230, 304, 320, 368, 380, 437, 460, 608, 640, 736, 760, 874, 920, 1216, 1429, 1472, 1520, 1748, 1840, 2185, 2432, 2858, 2944, 3040, 3496, 3680, 4370, 5716, 6080, 6992, 7145, 7360, 8740, 11432, 12160, 13984, 14290, 14720, 17480, 22864, 27151, 27968, 28580, 32867, 34960, 45728, 54302, 55936, 57160, 65734, 69920, 91456, 108604, 114320, 131468, 135755, 139840, 164335, 182912, 217208, 228640, 262936, 271510, 279680, 328670, 434416, 457280, 525872, 543020, 624473, 657340, 868832, 914560, 1051744, 1086040, 1248946, 1314680, 1737664, 2103488, 2172080, 2497892, 2629360, 3122365, 3475328, 4206976, 4344160, 4995784, 5258720, 6244730, 8688320, 9991568, 10517440, 12489460, 17376640, 19983136, 21034880, 24978920, 39966272, 49957840, 79932544, 99915680, 199831360, 399662720]

約数ペア:

[(1, 399662720), (2, 199831360), (4, 99915680), (5, 79932544), (8, 49957840), (10, 39966272), (16, 24978920), (19, 21034880), (20, 19983136), (23, 17376640), (32, 12489460), (38, 10517440), (40, 9991568), (46, 8688320), (64, 6244730), (76, 5258720), (80, 4995784), (92, 4344160), (95, 4206976), (115, 3475328), (128, 3122365), (152, 2629360), (160, 2497892), (184, 2172080), (190, 2103488), (230, 1737664), (304, 1314680), (320, 1248946), (368, 1086040), (380, 1051744), (437, 914560), (460, 868832), (608, 657340), (640, 624473), (736, 543020), (760, 525872), (874, 457280), (920, 434416), (1216, 328670), (1429, 279680), (1472, 271510), (1520, 262936), (1748, 228640), (1840, 217208), (2185, 182912), (2432, 164335), (2858, 139840), (2944, 135755), (3040, 131468), (3496, 114320), (3680, 108604), (4370, 91456), (5716, 69920), (6080, 65734), (6992, 57160), (7145, 55936), (7360, 54302), (8740, 45728), (11432, 34960), (12160, 32867), (13984, 28580), (14290, 27968), (14720, 27151), (17480, 22864)]