42139390

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{1301}}^1$

素因数の和:1428

約数の個数: 32

約数和(自身を含む): 78744960

約数和(自身を除く): 36605570

約数列:

[1, 2, 5, 10, 41, 79, 82, 158, 205, 395, 410, 790, 1301, 2602, 3239, 6478, 6505, 13010, 16195, 32390, 53341, 102779, 106682, 205558, 266705, 513895, 533410, 1027790, 4213939, 8427878, 21069695, 42139390]

約数ペア:

[(1, 42139390), (2, 21069695), (5, 8427878), (10, 4213939), (41, 1027790), (79, 533410), (82, 513895), (158, 266705), (205, 205558), (395, 106682), (410, 102779), (790, 53341), (1301, 32390), (2602, 16195), (3239, 13010), (6478, 6505)]