31471640

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{5743}}^1$

素因数の和:5891

約数の個数: 32

約数和(自身を含む): 71340480

約数和(自身を除く): 39868840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 2740, 5480, 5743, 11486, 22972, 28715, 45944, 57430, 114860, 229720, 786791, 1573582, 3147164, 3933955, 6294328, 7867910, 15735820, 31471640]

約数ペア:

[(1, 31471640), (2, 15735820), (4, 7867910), (5, 6294328), (8, 3933955), (10, 3147164), (20, 1573582), (40, 786791), (137, 229720), (274, 114860), (548, 57430), (685, 45944), (1096, 28715), (1370, 22972), (2740, 11486), (5480, 5743)]