201991880

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{136481}}^1$

素因数の和:136529

約数の個数: 32

約数和(自身を含む): 466768440

約数和(自身を除く): 264776560

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 136481, 272962, 545924, 682405, 1091848, 1364810, 2729620, 5049797, 5459240, 10099594, 20199188, 25248985, 40398376, 50497970, 100995940, 201991880]

約数ペア:

[(1, 201991880), (2, 100995940), (4, 50497970), (5, 40398376), (8, 25248985), (10, 20199188), (20, 10099594), (37, 5459240), (40, 5049797), (74, 2729620), (148, 1364810), (185, 1091848), (296, 682405), (370, 545924), (740, 272962), (1480, 136481)]