81439400

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{58171}}^1$

素因数の和:58194

約数の個数: 48

約数和(自身を含む): 216399840

約数和(自身を除く): 134960440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 140, 175, 200, 280, 350, 700, 1400, 58171, 116342, 232684, 290855, 407197, 465368, 581710, 814394, 1163420, 1454275, 1628788, 2035985, 2326840, 2908550, 3257576, 4071970, 5817100, 8143940, 10179925, 11634200, 16287880, 20359850, 40719700, 81439400]

約数ペア:

[(1, 81439400), (2, 40719700), (4, 20359850), (5, 16287880), (7, 11634200), (8, 10179925), (10, 8143940), (14, 5817100), (20, 4071970), (25, 3257576), (28, 2908550), (35, 2326840), (40, 2035985), (50, 1628788), (56, 1454275), (70, 1163420), (100, 814394), (140, 581710), (175, 465368), (200, 407197), (280, 290855), (350, 232684), (700, 116342), (1400, 58171)]