420047551

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1093}}^1$

素因数の和:1172

約数の個数: 48

約数和(自身を含む): 574691328

約数和(自身を除く): 154643777

約数列:

[1, 7, 11, 23, 31, 49, 77, 161, 217, 253, 341, 539, 713, 1093, 1127, 1519, 1771, 2387, 4991, 7651, 7843, 12023, 12397, 16709, 25139, 33883, 34937, 53557, 54901, 84161, 175973, 237181, 276529, 372713, 384307, 589127, 779309, 1231811, 1660267, 1935703, 2608991, 5455163, 8572399, 13549921, 18262937, 38186141, 60006793, 420047551]

約数ペア:

[(1, 420047551), (7, 60006793), (11, 38186141), (23, 18262937), (31, 13549921), (49, 8572399), (77, 5455163), (161, 2608991), (217, 1935703), (253, 1660267), (341, 1231811), (539, 779309), (713, 589127), (1093, 384307), (1127, 372713), (1519, 276529), (1771, 237181), (2387, 175973), (4991, 84161), (7651, 54901), (7843, 53557), (12023, 34937), (12397, 33883), (16709, 25139)]