168488720

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67939}}^1$

素因数の和:67983

約数の個数: 40

約数和(自身を含む): 404378880

約数和(自身を除く): 235890160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 67939, 135878, 271756, 339695, 543512, 679390, 1087024, 1358780, 2106109, 2717560, 4212218, 5435120, 8424436, 10530545, 16848872, 21061090, 33697744, 42122180, 84244360, 168488720]

約数ペア:

[(1, 168488720), (2, 84244360), (4, 42122180), (5, 33697744), (8, 21061090), (10, 16848872), (16, 10530545), (20, 8424436), (31, 5435120), (40, 4212218), (62, 2717560), (80, 2106109), (124, 1358780), (155, 1087024), (248, 679390), (310, 543512), (496, 339695), (620, 271756), (1240, 135878), (2480, 67939)]