28907830

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{2971}}^1$

素因数の和:3124

約数の個数: 32

約数和(自身を含む): 59915520

約数和(自身を除く): 31007690

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 139, 278, 695, 973, 1390, 1946, 2971, 4865, 5942, 9730, 14855, 20797, 29710, 41594, 103985, 207970, 412969, 825938, 2064845, 2890783, 4129690, 5781566, 14453915, 28907830]

約数ペア:

[(1, 28907830), (2, 14453915), (5, 5781566), (7, 4129690), (10, 2890783), (14, 2064845), (35, 825938), (70, 412969), (139, 207970), (278, 103985), (695, 41594), (973, 29710), (1390, 20797), (1946, 14855), (2971, 9730), (4865, 5942)]