28040895

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20101}}^1$

素因数の和:20143

約数の個数: 24

約数和(自身を含む): 50174592

約数和(自身を除く): 22133697

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 1395, 20101, 60303, 100505, 180909, 301515, 623131, 904545, 1869393, 3115655, 5608179, 9346965, 28040895]

約数ペア:

[(1, 28040895), (3, 9346965), (5, 5608179), (9, 3115655), (15, 1869393), (31, 904545), (45, 623131), (93, 301515), (155, 180909), (279, 100505), (465, 60303), (1395, 20101)]