393321890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{283}}^1\times {\mathrm{10691}}^1$

素因数の和:10994

約数の個数: 32

約数和(自身を含む): 765205056

約数和(自身を除く): 371883166

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 283, 566, 1415, 2830, 3679, 7358, 10691, 18395, 21382, 36790, 53455, 106910, 138983, 277966, 694915, 1389830, 3025553, 6051106, 15127765, 30255530, 39332189, 78664378, 196660945, 393321890]

約数ペア:

[(1, 393321890), (2, 196660945), (5, 78664378), (10, 39332189), (13, 30255530), (26, 15127765), (65, 6051106), (130, 3025553), (283, 1389830), (566, 694915), (1415, 277966), (2830, 138983), (3679, 106910), (7358, 53455), (10691, 36790), (18395, 21382)]