20138264540

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{191}}^1\times {\mathrm{7499}}^1$

素因数の和:7755

約数の個数: 96

約数和(自身を含む): 45964800000

約数和(自身を除く): 25826535460

約数列:

[1, 2, 4, 5, 10, 19, 20, 37, 38, 74, 76, 95, 148, 185, 190, 191, 370, 380, 382, 703, 740, 764, 955, 1406, 1910, 2812, 3515, 3629, 3820, 7030, 7067, 7258, 7499, 14060, 14134, 14516, 14998, 18145, 28268, 29996, 35335, 36290, 37495, 70670, 72580, 74990, 134273, 141340, 142481, 149980, 268546, 277463, 284962, 537092, 554926, 569924, 671365, 712405, 1109852, 1342730, 1387315, 1424810, 1432309, 2685460, 2774630, 2849620, 2864618, 5271797, 5549260, 5729236, 7161545, 10543594, 14323090, 21087188, 26358985, 27213871, 28646180, 52717970, 52995433, 54427742, 105435940, 105990866, 108855484, 136069355, 211981732, 264977165, 272138710, 529954330, 544277420, 1006913227, 1059908660, 2013826454, 4027652908, 5034566135, 10069132270, 20138264540]

約数ペア:

[(1, 20138264540), (2, 10069132270), (4, 5034566135), (5, 4027652908), (10, 2013826454), (19, 1059908660), (20, 1006913227), (37, 544277420), (38, 529954330), (74, 272138710), (76, 264977165), (95, 211981732), (148, 136069355), (185, 108855484), (190, 105990866), (191, 105435940), (370, 54427742), (380, 52995433), (382, 52717970), (703, 28646180), (740, 27213871), (764, 26358985), (955, 21087188), (1406, 14323090), (1910, 10543594), (2812, 7161545), (3515, 5729236), (3629, 5549260), (3820, 5271797), (7030, 2864618), (7067, 2849620), (7258, 2774630), (7499, 2685460), (14060, 1432309), (14134, 1424810), (14516, 1387315), (14998, 1342730), (18145, 1109852), (28268, 712405), (29996, 671365), (35335, 569924), (36290, 554926), (37495, 537092), (70670, 284962), (72580, 277463), (74990, 268546), (134273, 149980), (141340, 142481)]