261707140

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{353}}^1\times {\mathrm{1951}}^1$

素因数の和:2332

約数の個数: 48

約数和(自身を含む): 580446720

約数和(自身を除く): 318739580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 353, 380, 706, 1412, 1765, 1951, 3530, 3902, 6707, 7060, 7804, 9755, 13414, 19510, 26828, 33535, 37069, 39020, 67070, 74138, 134140, 148276, 185345, 370690, 688703, 741380, 1377406, 2754812, 3443515, 6887030, 13085357, 13774060, 26170714, 52341428, 65426785, 130853570, 261707140]

約数ペア:

[(1, 261707140), (2, 130853570), (4, 65426785), (5, 52341428), (10, 26170714), (19, 13774060), (20, 13085357), (38, 6887030), (76, 3443515), (95, 2754812), (190, 1377406), (353, 741380), (380, 688703), (706, 370690), (1412, 185345), (1765, 148276), (1951, 134140), (3530, 74138), (3902, 67070), (6707, 39020), (7060, 37069), (7804, 33535), (9755, 26828), (13414, 19510)]