71666840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{311}}^1\times {\mathrm{823}}^1$

素因数の和:1152

約数の個数: 64

約数和(自身を含む): 185103360

約数和(自身を除く): 113436520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 311, 622, 823, 1244, 1555, 1646, 2177, 2488, 3110, 3292, 4115, 4354, 5761, 6220, 6584, 8230, 8708, 10885, 11522, 12440, 16460, 17416, 21770, 23044, 28805, 32920, 43540, 46088, 57610, 87080, 115220, 230440, 255953, 511906, 1023812, 1279765, 1791671, 2047624, 2559530, 3583342, 5119060, 7166684, 8958355, 10238120, 14333368, 17916710, 35833420, 71666840]

約数ペア:

[(1, 71666840), (2, 35833420), (4, 17916710), (5, 14333368), (7, 10238120), (8, 8958355), (10, 7166684), (14, 5119060), (20, 3583342), (28, 2559530), (35, 2047624), (40, 1791671), (56, 1279765), (70, 1023812), (140, 511906), (280, 255953), (311, 230440), (622, 115220), (823, 87080), (1244, 57610), (1555, 46088), (1646, 43540), (2177, 32920), (2488, 28805), (3110, 23044), (3292, 21770), (4115, 17416), (4354, 16460), (5761, 12440), (6220, 11522), (6584, 10885), (8230, 8708)]