20178697784

素因数分解:

$2^3\times 7^1\times {\mathrm{653}}^1\times {\mathrm{551813}}^1$

素因数の和:552479

約数の個数: 32

約数和(自身を含む): 43306362720

約数和(自身を除く): 23127664936

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 653, 1306, 2612, 4571, 5224, 9142, 18284, 36568, 551813, 1103626, 2207252, 3862691, 4414504, 7725382, 15450764, 30901528, 360333889, 720667778, 1441335556, 2522337223, 2882671112, 5044674446, 10089348892, 20178697784]

約数ペア:

[(1, 20178697784), (2, 10089348892), (4, 5044674446), (7, 2882671112), (8, 2522337223), (14, 1441335556), (28, 720667778), (56, 360333889), (653, 30901528), (1306, 15450764), (2612, 7725382), (4571, 4414504), (5224, 3862691), (9142, 2207252), (18284, 1103626), (36568, 551813)]