1995280

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{509}}^1$

素因数の和:536

約数の個数: 60

約数和(自身を含む): 5407020

約数和(自身を除く): 3411740

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 509, 560, 784, 980, 1018, 1960, 2036, 2545, 3563, 3920, 4072, 5090, 7126, 8144, 10180, 14252, 17815, 20360, 24941, 28504, 35630, 40720, 49882, 57008, 71260, 99764, 124705, 142520, 199528, 249410, 285040, 399056, 498820, 997640, 1995280]

約数ペア:

[(1, 1995280), (2, 997640), (4, 498820), (5, 399056), (7, 285040), (8, 249410), (10, 199528), (14, 142520), (16, 124705), (20, 99764), (28, 71260), (35, 57008), (40, 49882), (49, 40720), (56, 35630), (70, 28504), (80, 24941), (98, 20360), (112, 17815), (140, 14252), (196, 10180), (245, 8144), (280, 7126), (392, 5090), (490, 4072), (509, 3920), (560, 3563), (784, 2545), (980, 2036), (1018, 1960)]