164530640

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{66343}}^1$

素因数の和:66387

約数の個数: 40

約数和(自身を含む): 394879488

約数和(自身を除く): 230348848

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 66343, 132686, 265372, 331715, 530744, 663430, 1061488, 1326860, 2056633, 2653720, 4113266, 5307440, 8226532, 10283165, 16453064, 20566330, 32906128, 41132660, 82265320, 164530640]

約数ペア:

[(1, 164530640), (2, 82265320), (4, 41132660), (5, 32906128), (8, 20566330), (10, 16453064), (16, 10283165), (20, 8226532), (31, 5307440), (40, 4113266), (62, 2653720), (80, 2056633), (124, 1326860), (155, 1061488), (248, 663430), (310, 530744), (496, 331715), (620, 265372), (1240, 132686), (2480, 66343)]