30831590

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{541}}^1$

素因数の和:728

約数の個数: 32

約数和(自身を含む): 57365280

約数和(自身を除く): 26533690

約数列:

[1, 2, 5, 10, 41, 82, 139, 205, 278, 410, 541, 695, 1082, 1390, 2705, 5410, 5699, 11398, 22181, 28495, 44362, 56990, 75199, 110905, 150398, 221810, 375995, 751990, 3083159, 6166318, 15415795, 30831590]

約数ペア:

[(1, 30831590), (2, 15415795), (5, 6166318), (10, 3083159), (41, 751990), (82, 375995), (139, 221810), (205, 150398), (278, 110905), (410, 75199), (541, 56990), (695, 44362), (1082, 28495), (1390, 22181), (2705, 11398), (5410, 5699)]