81251520

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{113}}^1$

素因数の和:247

約数の個数: 224

約数和(自身を含む): 300215808

約数和(自身を除く): 218964288

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 107, 112, 113, 120, 140, 160, 168, 192, 210, 214, 224, 226, 240, 280, 320, 321, 336, 339, 420, 428, 448, 452, 480, 535, 560, 565, 642, 672, 678, 749, 791, 840, 856, 904, 960, 1070, 1120, 1130, 1284, 1344, 1356, 1498, 1582, 1605, 1680, 1695, 1712, 1808, 2140, 2240, 2247, 2260, 2373, 2568, 2712, 2996, 3164, 3210, 3360, 3390, 3424, 3616, 3745, 3955, 4280, 4494, 4520, 4746, 5136, 5424, 5992, 6328, 6420, 6720, 6780, 6848, 7232, 7490, 7910, 8560, 8988, 9040, 9492, 10272, 10848, 11235, 11865, 11984, 12091, 12656, 12840, 13560, 14980, 15820, 17120, 17976, 18080, 18984, 20544, 21696, 22470, 23730, 23968, 24182, 25312, 25680, 27120, 29960, 31640, 34240, 35952, 36160, 36273, 37968, 44940, 47460, 47936, 48364, 50624, 51360, 54240, 59920, 60455, 63280, 71904, 72546, 75936, 84637, 89880, 94920, 96728, 102720, 108480, 119840, 120910, 126560, 143808, 145092, 151872, 169274, 179760, 181365, 189840, 193456, 239680, 241820, 253120, 253911, 290184, 338548, 359520, 362730, 379680, 386912, 423185, 483640, 507822, 580368, 677096, 719040, 725460, 759360, 773824, 846370, 967280, 1015644, 1160736, 1269555, 1354192, 1450920, 1692740, 1934560, 2031288, 2321472, 2539110, 2708384, 2901840, 3385480, 3869120, 4062576, 5078220, 5416768, 5803680, 6770960, 8125152, 10156440, 11607360, 13541920, 16250304, 20312880, 27083840, 40625760, 81251520]

約数ペア:

[(1, 81251520), (2, 40625760), (3, 27083840), (4, 20312880), (5, 16250304), (6, 13541920), (7, 11607360), (8, 10156440), (10, 8125152), (12, 6770960), (14, 5803680), (15, 5416768), (16, 5078220), (20, 4062576), (21, 3869120), (24, 3385480), (28, 2901840), (30, 2708384), (32, 2539110), (35, 2321472), (40, 2031288), (42, 1934560), (48, 1692740), (56, 1450920), (60, 1354192), (64, 1269555), (70, 1160736), (80, 1015644), (84, 967280), (96, 846370), (105, 773824), (107, 759360), (112, 725460), (113, 719040), (120, 677096), (140, 580368), (160, 507822), (168, 483640), (192, 423185), (210, 386912), (214, 379680), (224, 362730), (226, 359520), (240, 338548), (280, 290184), (320, 253911), (321, 253120), (336, 241820), (339, 239680), (420, 193456), (428, 189840), (448, 181365), (452, 179760), (480, 169274), (535, 151872), (560, 145092), (565, 143808), (642, 126560), (672, 120910), (678, 119840), (749, 108480), (791, 102720), (840, 96728), (856, 94920), (904, 89880), (960, 84637), (1070, 75936), (1120, 72546), (1130, 71904), (1284, 63280), (1344, 60455), (1356, 59920), (1498, 54240), (1582, 51360), (1605, 50624), (1680, 48364), (1695, 47936), (1712, 47460), (1808, 44940), (2140, 37968), (2240, 36273), (2247, 36160), (2260, 35952), (2373, 34240), (2568, 31640), (2712, 29960), (2996, 27120), (3164, 25680), (3210, 25312), (3360, 24182), (3390, 23968), (3424, 23730), (3616, 22470), (3745, 21696), (3955, 20544), (4280, 18984), (4494, 18080), (4520, 17976), (4746, 17120), (5136, 15820), (5424, 14980), (5992, 13560), (6328, 12840), (6420, 12656), (6720, 12091), (6780, 11984), (6848, 11865), (7232, 11235), (7490, 10848), (7910, 10272), (8560, 9492), (8988, 9040)]