28468460

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{3943}}^1$

素因数の和:3990

約数の個数: 36

約数和(自身を含む): 63111888

約数和(自身を除く): 34643428

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 361, 380, 722, 1444, 1805, 3610, 3943, 7220, 7886, 15772, 19715, 39430, 74917, 78860, 149834, 299668, 374585, 749170, 1423423, 1498340, 2846846, 5693692, 7117115, 14234230, 28468460]

約数ペア:

[(1, 28468460), (2, 14234230), (4, 7117115), (5, 5693692), (10, 2846846), (19, 1498340), (20, 1423423), (38, 749170), (76, 374585), (95, 299668), (190, 149834), (361, 78860), (380, 74917), (722, 39430), (1444, 19715), (1805, 15772), (3610, 7886), (3943, 7220)]