256891270

素因数分解:

$2^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{443}}^1\times {\mathrm{563}}^1$

素因数の和:1116

約数の個数: 32

約数和(自身を含む): 468778752

約数和(自身を除く): 211887482

約数列:

[1, 2, 5, 10, 103, 206, 443, 515, 563, 886, 1030, 1126, 2215, 2815, 4430, 5630, 45629, 57989, 91258, 115978, 228145, 249409, 289945, 456290, 498818, 579890, 1247045, 2494090, 25689127, 51378254, 128445635, 256891270]

約数ペア:

[(1, 256891270), (2, 128445635), (5, 51378254), (10, 25689127), (103, 2494090), (206, 1247045), (443, 579890), (515, 498818), (563, 456290), (886, 289945), (1030, 249409), (1126, 228145), (2215, 115978), (2815, 91258), (4430, 57989), (5630, 45629)]