19647616

素因数分解:

$2^7\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:189

約数の個数: 64

約数和(自身を含む): 41616000

約数和(自身を除く): 21968384

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 64, 67, 79, 116, 128, 134, 158, 232, 268, 316, 464, 536, 632, 928, 1072, 1264, 1856, 1943, 2144, 2291, 2528, 3712, 3886, 4288, 4582, 5056, 5293, 7772, 8576, 9164, 10112, 10586, 15544, 18328, 21172, 31088, 36656, 42344, 62176, 73312, 84688, 124352, 146624, 153497, 169376, 248704, 293248, 306994, 338752, 613988, 677504, 1227976, 2455952, 4911904, 9823808, 19647616]

約数ペア:

[(1, 19647616), (2, 9823808), (4, 4911904), (8, 2455952), (16, 1227976), (29, 677504), (32, 613988), (58, 338752), (64, 306994), (67, 293248), (79, 248704), (116, 169376), (128, 153497), (134, 146624), (158, 124352), (232, 84688), (268, 73312), (316, 62176), (464, 42344), (536, 36656), (632, 31088), (928, 21172), (1072, 18328), (1264, 15544), (1856, 10586), (1943, 10112), (2144, 9164), (2291, 8576), (2528, 7772), (3712, 5293), (3886, 5056), (4288, 4582)]