28274855

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{313}}^1$

素因数の和:443

約数の個数: 32

約数和(自身を含む): 40694400

約数和(自身を除く): 12419545

約数列:

[1, 5, 7, 29, 35, 89, 145, 203, 313, 445, 623, 1015, 1565, 2191, 2581, 3115, 9077, 10955, 12905, 18067, 27857, 45385, 63539, 90335, 139285, 194999, 317695, 807853, 974995, 4039265, 5654971, 28274855]

約数ペア:

[(1, 28274855), (5, 5654971), (7, 4039265), (29, 974995), (35, 807853), (89, 317695), (145, 194999), (203, 139285), (313, 90335), (445, 63539), (623, 45385), (1015, 27857), (1565, 18067), (2191, 12905), (2581, 10955), (3115, 9077)]