20312880

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{113}}^1$

素因数の和:243

約数の個数: 160

約数和(自身を含む): 73281024

約数和(自身を除く): 52968144

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 107, 112, 113, 120, 140, 168, 210, 214, 226, 240, 280, 321, 336, 339, 420, 428, 452, 535, 560, 565, 642, 678, 749, 791, 840, 856, 904, 1070, 1130, 1284, 1356, 1498, 1582, 1605, 1680, 1695, 1712, 1808, 2140, 2247, 2260, 2373, 2568, 2712, 2996, 3164, 3210, 3390, 3745, 3955, 4280, 4494, 4520, 4746, 5136, 5424, 5992, 6328, 6420, 6780, 7490, 7910, 8560, 8988, 9040, 9492, 11235, 11865, 11984, 12091, 12656, 12840, 13560, 14980, 15820, 17976, 18984, 22470, 23730, 24182, 25680, 27120, 29960, 31640, 35952, 36273, 37968, 44940, 47460, 48364, 59920, 60455, 63280, 72546, 84637, 89880, 94920, 96728, 120910, 145092, 169274, 179760, 181365, 189840, 193456, 241820, 253911, 290184, 338548, 362730, 423185, 483640, 507822, 580368, 677096, 725460, 846370, 967280, 1015644, 1269555, 1354192, 1450920, 1692740, 2031288, 2539110, 2901840, 3385480, 4062576, 5078220, 6770960, 10156440, 20312880]

約数ペア:

[(1, 20312880), (2, 10156440), (3, 6770960), (4, 5078220), (5, 4062576), (6, 3385480), (7, 2901840), (8, 2539110), (10, 2031288), (12, 1692740), (14, 1450920), (15, 1354192), (16, 1269555), (20, 1015644), (21, 967280), (24, 846370), (28, 725460), (30, 677096), (35, 580368), (40, 507822), (42, 483640), (48, 423185), (56, 362730), (60, 338548), (70, 290184), (80, 253911), (84, 241820), (105, 193456), (107, 189840), (112, 181365), (113, 179760), (120, 169274), (140, 145092), (168, 120910), (210, 96728), (214, 94920), (226, 89880), (240, 84637), (280, 72546), (321, 63280), (336, 60455), (339, 59920), (420, 48364), (428, 47460), (452, 44940), (535, 37968), (560, 36273), (565, 35952), (642, 31640), (678, 29960), (749, 27120), (791, 25680), (840, 24182), (856, 23730), (904, 22470), (1070, 18984), (1130, 17976), (1284, 15820), (1356, 14980), (1498, 13560), (1582, 12840), (1605, 12656), (1680, 12091), (1695, 11984), (1712, 11865), (1808, 11235), (2140, 9492), (2247, 9040), (2260, 8988), (2373, 8560), (2568, 7910), (2712, 7490), (2996, 6780), (3164, 6420), (3210, 6328), (3390, 5992), (3745, 5424), (3955, 5136), (4280, 4746), (4494, 4520)]