31381000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{4483}}^1$

素因数の和:4511

約数の個数: 64

約数和(自身を含む): 83940480

約数和(自身を除く): 52559480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 125, 140, 175, 200, 250, 280, 350, 500, 700, 875, 1000, 1400, 1750, 3500, 4483, 7000, 8966, 17932, 22415, 31381, 35864, 44830, 62762, 89660, 112075, 125524, 156905, 179320, 224150, 251048, 313810, 448300, 560375, 627620, 784525, 896600, 1120750, 1255240, 1569050, 2241500, 3138100, 3922625, 4483000, 6276200, 7845250, 15690500, 31381000]

約数ペア:

[(1, 31381000), (2, 15690500), (4, 7845250), (5, 6276200), (7, 4483000), (8, 3922625), (10, 3138100), (14, 2241500), (20, 1569050), (25, 1255240), (28, 1120750), (35, 896600), (40, 784525), (50, 627620), (56, 560375), (70, 448300), (100, 313810), (125, 251048), (140, 224150), (175, 179320), (200, 156905), (250, 125524), (280, 112075), (350, 89660), (500, 62762), (700, 44830), (875, 35864), (1000, 31381), (1400, 22415), (1750, 17932), (3500, 8966), (4483, 7000)]