247851520

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{13831}}^1$

素因数の和:13861

約数の個数: 80

約数和(自身を含む): 679206528

約数和(自身を除く): 431355008

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 512, 560, 640, 896, 1120, 1280, 1792, 2240, 2560, 3584, 4480, 8960, 13831, 17920, 27662, 55324, 69155, 96817, 110648, 138310, 193634, 221296, 276620, 387268, 442592, 484085, 553240, 774536, 885184, 968170, 1106480, 1549072, 1770368, 1936340, 2212960, 3098144, 3540736, 3872680, 4425920, 6196288, 7081472, 7745360, 8851840, 12392576, 15490720, 17703680, 24785152, 30981440, 35407360, 49570304, 61962880, 123925760, 247851520]

約数ペア:

[(1, 247851520), (2, 123925760), (4, 61962880), (5, 49570304), (7, 35407360), (8, 30981440), (10, 24785152), (14, 17703680), (16, 15490720), (20, 12392576), (28, 8851840), (32, 7745360), (35, 7081472), (40, 6196288), (56, 4425920), (64, 3872680), (70, 3540736), (80, 3098144), (112, 2212960), (128, 1936340), (140, 1770368), (160, 1549072), (224, 1106480), (256, 968170), (280, 885184), (320, 774536), (448, 553240), (512, 484085), (560, 442592), (640, 387268), (896, 276620), (1120, 221296), (1280, 193634), (1792, 138310), (2240, 110648), (2560, 96817), (3584, 69155), (4480, 55324), (8960, 27662), (13831, 17920)]