18863040

素因数分解:

$2^6\times 3^1\times 5^1\times 7^2\times {\mathrm{401}}^1$

素因数の和:435

約数の個数: 168

約数和(自身を含む): 69841872

約数和(自身を除く): 50978832

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, 49, 56, 60, 64, 70, 80, 84, 96, 98, 105, 112, 120, 140, 147, 160, 168, 192, 196, 210, 224, 240, 245, 280, 294, 320, 336, 392, 401, 420, 448, 480, 490, 560, 588, 672, 735, 784, 802, 840, 960, 980, 1120, 1176, 1203, 1344, 1470, 1568, 1604, 1680, 1960, 2005, 2240, 2352, 2406, 2807, 2940, 3136, 3208, 3360, 3920, 4010, 4704, 4812, 5614, 5880, 6015, 6416, 6720, 7840, 8020, 8421, 9408, 9624, 11228, 11760, 12030, 12832, 14035, 15680, 16040, 16842, 19248, 19649, 22456, 23520, 24060, 25664, 28070, 32080, 33684, 38496, 39298, 42105, 44912, 47040, 48120, 56140, 58947, 64160, 67368, 76992, 78596, 84210, 89824, 96240, 98245, 112280, 117894, 128320, 134736, 157192, 168420, 179648, 192480, 196490, 224560, 235788, 269472, 294735, 314384, 336840, 384960, 392980, 449120, 471576, 538944, 589470, 628768, 673680, 785960, 898240, 943152, 1178940, 1257536, 1347360, 1571920, 1886304, 2357880, 2694720, 3143840, 3772608, 4715760, 6287680, 9431520, 18863040]

約数ペア:

[(1, 18863040), (2, 9431520), (3, 6287680), (4, 4715760), (5, 3772608), (6, 3143840), (7, 2694720), (8, 2357880), (10, 1886304), (12, 1571920), (14, 1347360), (15, 1257536), (16, 1178940), (20, 943152), (21, 898240), (24, 785960), (28, 673680), (30, 628768), (32, 589470), (35, 538944), (40, 471576), (42, 449120), (48, 392980), (49, 384960), (56, 336840), (60, 314384), (64, 294735), (70, 269472), (80, 235788), (84, 224560), (96, 196490), (98, 192480), (105, 179648), (112, 168420), (120, 157192), (140, 134736), (147, 128320), (160, 117894), (168, 112280), (192, 98245), (196, 96240), (210, 89824), (224, 84210), (240, 78596), (245, 76992), (280, 67368), (294, 64160), (320, 58947), (336, 56140), (392, 48120), (401, 47040), (420, 44912), (448, 42105), (480, 39298), (490, 38496), (560, 33684), (588, 32080), (672, 28070), (735, 25664), (784, 24060), (802, 23520), (840, 22456), (960, 19649), (980, 19248), (1120, 16842), (1176, 16040), (1203, 15680), (1344, 14035), (1470, 12832), (1568, 12030), (1604, 11760), (1680, 11228), (1960, 9624), (2005, 9408), (2240, 8421), (2352, 8020), (2406, 7840), (2807, 6720), (2940, 6416), (3136, 6015), (3208, 5880), (3360, 5614), (3920, 4812), (4010, 4704)]