20647710

素因数分解:

$2^1\times 3^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{293}}^1$

素因数の和:344

約数の個数: 96

約数和(自身を含む): 57788640

約数和(自身を除く): 37140930

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 29, 30, 45, 54, 58, 81, 87, 90, 135, 145, 162, 174, 243, 261, 270, 290, 293, 405, 435, 486, 522, 586, 783, 810, 870, 879, 1215, 1305, 1465, 1566, 1758, 2349, 2430, 2610, 2637, 2930, 3915, 4395, 4698, 5274, 7047, 7830, 7911, 8497, 8790, 11745, 13185, 14094, 15822, 16994, 23490, 23733, 25491, 26370, 35235, 39555, 42485, 47466, 50982, 70470, 71199, 76473, 79110, 84970, 118665, 127455, 142398, 152946, 229419, 237330, 254910, 355995, 382365, 458838, 688257, 711990, 764730, 1147095, 1376514, 2064771, 2294190, 3441285, 4129542, 6882570, 10323855, 20647710]

約数ペア:

[(1, 20647710), (2, 10323855), (3, 6882570), (5, 4129542), (6, 3441285), (9, 2294190), (10, 2064771), (15, 1376514), (18, 1147095), (27, 764730), (29, 711990), (30, 688257), (45, 458838), (54, 382365), (58, 355995), (81, 254910), (87, 237330), (90, 229419), (135, 152946), (145, 142398), (162, 127455), (174, 118665), (243, 84970), (261, 79110), (270, 76473), (290, 71199), (293, 70470), (405, 50982), (435, 47466), (486, 42485), (522, 39555), (586, 35235), (783, 26370), (810, 25491), (870, 23733), (879, 23490), (1215, 16994), (1305, 15822), (1465, 14094), (1566, 13185), (1758, 11745), (2349, 8790), (2430, 8497), (2610, 7911), (2637, 7830), (2930, 7047), (3915, 5274), (4395, 4698)]