71806840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{317}}^1\times {\mathrm{809}}^1$

素因数の和:1144

約数の個数: 64

約数和(自身を含む): 185457600

約数和(自身を除く): 113650760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 317, 634, 809, 1268, 1585, 1618, 2219, 2536, 3170, 3236, 4045, 4438, 5663, 6340, 6472, 8090, 8876, 11095, 11326, 12680, 16180, 17752, 22190, 22652, 28315, 32360, 44380, 45304, 56630, 88760, 113260, 226520, 256453, 512906, 1025812, 1282265, 1795171, 2051624, 2564530, 3590342, 5129060, 7180684, 8975855, 10258120, 14361368, 17951710, 35903420, 71806840]

約数ペア:

[(1, 71806840), (2, 35903420), (4, 17951710), (5, 14361368), (7, 10258120), (8, 8975855), (10, 7180684), (14, 5129060), (20, 3590342), (28, 2564530), (35, 2051624), (40, 1795171), (56, 1282265), (70, 1025812), (140, 512906), (280, 256453), (317, 226520), (634, 113260), (809, 88760), (1268, 56630), (1585, 45304), (1618, 44380), (2219, 32360), (2536, 28315), (3170, 22652), (3236, 22190), (4045, 17752), (4438, 16180), (5663, 12680), (6340, 11326), (6472, 11095), (8090, 8876)]