28406575

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{751}}^1$

素因数の和:867

約数の個数: 24

約数和(自身を含む): 37765440

約数和(自身を除く): 9358865

約数列:

[1, 5, 17, 25, 85, 89, 425, 445, 751, 1513, 2225, 3755, 7565, 12767, 18775, 37825, 63835, 66839, 319175, 334195, 1136263, 1670975, 5681315, 28406575]

約数ペア:

[(1, 28406575), (5, 5681315), (17, 1670975), (25, 1136263), (85, 334195), (89, 319175), (425, 66839), (445, 63835), (751, 37825), (1513, 18775), (2225, 12767), (3755, 7565)]