16388640

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{599}}^1$

素因数の和:639

約数の個数: 144

約数和(自身を含む): 58968000

約数和(自身を除く): 42579360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 32, 36, 38, 40, 45, 48, 57, 60, 72, 76, 80, 90, 95, 96, 114, 120, 144, 152, 160, 171, 180, 190, 228, 240, 285, 288, 304, 342, 360, 380, 456, 480, 570, 599, 608, 684, 720, 760, 855, 912, 1140, 1198, 1368, 1440, 1520, 1710, 1797, 1824, 2280, 2396, 2736, 2995, 3040, 3420, 3594, 4560, 4792, 5391, 5472, 5990, 6840, 7188, 8985, 9120, 9584, 10782, 11381, 11980, 13680, 14376, 17970, 19168, 21564, 22762, 23960, 26955, 27360, 28752, 34143, 35940, 43128, 45524, 47920, 53910, 56905, 57504, 68286, 71880, 86256, 91048, 95840, 102429, 107820, 113810, 136572, 143760, 170715, 172512, 182096, 204858, 215640, 227620, 273144, 287520, 341430, 364192, 409716, 431280, 455240, 512145, 546288, 682860, 819432, 862560, 910480, 1024290, 1092576, 1365720, 1638864, 1820960, 2048580, 2731440, 3277728, 4097160, 5462880, 8194320, 16388640]

約数ペア:

[(1, 16388640), (2, 8194320), (3, 5462880), (4, 4097160), (5, 3277728), (6, 2731440), (8, 2048580), (9, 1820960), (10, 1638864), (12, 1365720), (15, 1092576), (16, 1024290), (18, 910480), (19, 862560), (20, 819432), (24, 682860), (30, 546288), (32, 512145), (36, 455240), (38, 431280), (40, 409716), (45, 364192), (48, 341430), (57, 287520), (60, 273144), (72, 227620), (76, 215640), (80, 204858), (90, 182096), (95, 172512), (96, 170715), (114, 143760), (120, 136572), (144, 113810), (152, 107820), (160, 102429), (171, 95840), (180, 91048), (190, 86256), (228, 71880), (240, 68286), (285, 57504), (288, 56905), (304, 53910), (342, 47920), (360, 45524), (380, 43128), (456, 35940), (480, 34143), (570, 28752), (599, 27360), (608, 26955), (684, 23960), (720, 22762), (760, 21564), (855, 19168), (912, 17970), (1140, 14376), (1198, 13680), (1368, 11980), (1440, 11381), (1520, 10782), (1710, 9584), (1797, 9120), (1824, 8985), (2280, 7188), (2396, 6840), (2736, 5990), (2995, 5472), (3040, 5391), (3420, 4792), (3594, 4560)]