20781792

素因数分解:

$2^5\times 3^3\times {\mathrm{67}}^1\times {\mathrm{359}}^1$

素因数の和:445

約数の個数: 96

約数和(自身を含む): 61689600

約数和(自身を除く): 40907808

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 67, 72, 96, 108, 134, 144, 201, 216, 268, 288, 359, 402, 432, 536, 603, 718, 804, 864, 1072, 1077, 1206, 1436, 1608, 1809, 2144, 2154, 2412, 2872, 3216, 3231, 3618, 4308, 4824, 5744, 6432, 6462, 7236, 8616, 9648, 9693, 11488, 12924, 14472, 17232, 19296, 19386, 24053, 25848, 28944, 34464, 38772, 48106, 51696, 57888, 72159, 77544, 96212, 103392, 144318, 155088, 192424, 216477, 288636, 310176, 384848, 432954, 577272, 649431, 769696, 865908, 1154544, 1298862, 1731816, 2309088, 2597724, 3463632, 5195448, 6927264, 10390896, 20781792]

約数ペア:

[(1, 20781792), (2, 10390896), (3, 6927264), (4, 5195448), (6, 3463632), (8, 2597724), (9, 2309088), (12, 1731816), (16, 1298862), (18, 1154544), (24, 865908), (27, 769696), (32, 649431), (36, 577272), (48, 432954), (54, 384848), (67, 310176), (72, 288636), (96, 216477), (108, 192424), (134, 155088), (144, 144318), (201, 103392), (216, 96212), (268, 77544), (288, 72159), (359, 57888), (402, 51696), (432, 48106), (536, 38772), (603, 34464), (718, 28944), (804, 25848), (864, 24053), (1072, 19386), (1077, 19296), (1206, 17232), (1436, 14472), (1608, 12924), (1809, 11488), (2144, 9693), (2154, 9648), (2412, 8616), (2872, 7236), (3216, 6462), (3231, 6432), (3618, 5744), (4308, 4824)]