25019690

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{269}}^1$

素因数の和:478

約数の個数: 32

約数和(自身を含む): 46189440

約数和(自身を除く): 21169750

約数列:

[1, 2, 5, 10, 71, 131, 142, 262, 269, 355, 538, 655, 710, 1310, 1345, 2690, 9301, 18602, 19099, 35239, 38198, 46505, 70478, 93010, 95495, 176195, 190990, 352390, 2501969, 5003938, 12509845, 25019690]

約数ペア:

[(1, 25019690), (2, 12509845), (5, 5003938), (10, 2501969), (71, 352390), (131, 190990), (142, 176195), (262, 95495), (269, 93010), (355, 70478), (538, 46505), (655, 38198), (710, 35239), (1310, 19099), (1345, 18602), (2690, 9301)]