20373990

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{439}}^1$

素因数の和:486

約数の個数: 128

約数和(自身を含む): 63866880

約数和(自身を除く): 43492890

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 17, 21, 26, 30, 34, 35, 39, 42, 51, 65, 70, 78, 85, 91, 102, 105, 119, 130, 170, 182, 195, 210, 221, 238, 255, 273, 357, 390, 439, 442, 455, 510, 546, 595, 663, 714, 878, 910, 1105, 1190, 1317, 1326, 1365, 1547, 1785, 2195, 2210, 2634, 2730, 3073, 3094, 3315, 3570, 4390, 4641, 5707, 6146, 6585, 6630, 7463, 7735, 9219, 9282, 11414, 13170, 14926, 15365, 15470, 17121, 18438, 22389, 23205, 28535, 30730, 34242, 37315, 39949, 44778, 46095, 46410, 52241, 57070, 74630, 79898, 85605, 92190, 97019, 104482, 111945, 119847, 156723, 171210, 194038, 199745, 223890, 239694, 261205, 291057, 313446, 399490, 485095, 522410, 582114, 599235, 679133, 783615, 970190, 1198470, 1358266, 1455285, 1567230, 2037399, 2910570, 3395665, 4074798, 6791330, 10186995, 20373990]

約数ペア:

[(1, 20373990), (2, 10186995), (3, 6791330), (5, 4074798), (6, 3395665), (7, 2910570), (10, 2037399), (13, 1567230), (14, 1455285), (15, 1358266), (17, 1198470), (21, 970190), (26, 783615), (30, 679133), (34, 599235), (35, 582114), (39, 522410), (42, 485095), (51, 399490), (65, 313446), (70, 291057), (78, 261205), (85, 239694), (91, 223890), (102, 199745), (105, 194038), (119, 171210), (130, 156723), (170, 119847), (182, 111945), (195, 104482), (210, 97019), (221, 92190), (238, 85605), (255, 79898), (273, 74630), (357, 57070), (390, 52241), (439, 46410), (442, 46095), (455, 44778), (510, 39949), (546, 37315), (595, 34242), (663, 30730), (714, 28535), (878, 23205), (910, 22389), (1105, 18438), (1190, 17121), (1317, 15470), (1326, 15365), (1365, 14926), (1547, 13170), (1785, 11414), (2195, 9282), (2210, 9219), (2634, 7735), (2730, 7463), (3073, 6630), (3094, 6585), (3315, 6146), (3570, 5707), (4390, 4641)]