20687112590

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{191}}^1\times {\mathrm{2851}}^1$

素因数の和:3209

約数の個数: 64

約数和(自身を含む): 39031787520

約数和(自身を除く): 18344674930

約数列:

[1, 2, 5, 10, 29, 58, 131, 145, 191, 262, 290, 382, 655, 955, 1310, 1910, 2851, 3799, 5539, 5702, 7598, 11078, 14255, 18995, 25021, 27695, 28510, 37990, 50042, 55390, 82679, 125105, 165358, 250210, 373481, 413395, 544541, 725609, 746962, 826790, 1089082, 1451218, 1867405, 2722705, 3628045, 3734810, 5445410, 7256090, 10830949, 15791689, 21661898, 31583378, 54154745, 71334871, 78958445, 108309490, 142669742, 157916890, 356674355, 713348710, 2068711259, 4137422518, 10343556295, 20687112590]

約数ペア:

[(1, 20687112590), (2, 10343556295), (5, 4137422518), (10, 2068711259), (29, 713348710), (58, 356674355), (131, 157916890), (145, 142669742), (191, 108309490), (262, 78958445), (290, 71334871), (382, 54154745), (655, 31583378), (955, 21661898), (1310, 15791689), (1910, 10830949), (2851, 7256090), (3799, 5445410), (5539, 3734810), (5702, 3628045), (7598, 2722705), (11078, 1867405), (14255, 1451218), (18995, 1089082), (25021, 826790), (27695, 746962), (28510, 725609), (37990, 544541), (50042, 413395), (55390, 373481), (82679, 250210), (125105, 165358)]