18901504

素因数分解:

$2^9\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1$

素因数の和:133

約数の個数: 80

約数和(自身を含む): 41738400

約数和(自身を除く): 22836896

約数列:

[1, 2, 4, 8, 16, 19, 29, 32, 38, 58, 64, 67, 76, 116, 128, 134, 152, 232, 256, 268, 304, 464, 512, 536, 551, 608, 928, 1072, 1102, 1216, 1273, 1856, 1943, 2144, 2204, 2432, 2546, 3712, 3886, 4288, 4408, 4864, 5092, 7424, 7772, 8576, 8816, 9728, 10184, 14848, 15544, 17152, 17632, 20368, 31088, 34304, 35264, 36917, 40736, 62176, 70528, 73834, 81472, 124352, 141056, 147668, 162944, 248704, 282112, 295336, 325888, 497408, 590672, 651776, 994816, 1181344, 2362688, 4725376, 9450752, 18901504]

約数ペア:

[(1, 18901504), (2, 9450752), (4, 4725376), (8, 2362688), (16, 1181344), (19, 994816), (29, 651776), (32, 590672), (38, 497408), (58, 325888), (64, 295336), (67, 282112), (76, 248704), (116, 162944), (128, 147668), (134, 141056), (152, 124352), (232, 81472), (256, 73834), (268, 70528), (304, 62176), (464, 40736), (512, 36917), (536, 35264), (551, 34304), (608, 31088), (928, 20368), (1072, 17632), (1102, 17152), (1216, 15544), (1273, 14848), (1856, 10184), (1943, 9728), (2144, 8816), (2204, 8576), (2432, 7772), (2546, 7424), (3712, 5092), (3886, 4864), (4288, 4408)]