20879936

素因数分解:

$2^6\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1$

素因数の和:272

約数の個数: 112

約数和(自身を含む): 54620160

約数和(自身を除く): 33740224

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 19, 22, 28, 32, 38, 44, 56, 64, 76, 77, 88, 112, 133, 152, 154, 176, 209, 223, 224, 266, 304, 308, 352, 418, 446, 448, 532, 608, 616, 704, 836, 892, 1064, 1216, 1232, 1463, 1561, 1672, 1784, 2128, 2453, 2464, 2926, 3122, 3344, 3568, 4237, 4256, 4906, 4928, 5852, 6244, 6688, 7136, 8474, 8512, 9812, 11704, 12488, 13376, 14272, 16948, 17171, 19624, 23408, 24976, 29659, 33896, 34342, 39248, 46607, 46816, 49952, 59318, 67792, 68684, 78496, 93214, 93632, 99904, 118636, 135584, 137368, 156992, 186428, 237272, 271168, 274736, 326249, 372856, 474544, 549472, 652498, 745712, 949088, 1098944, 1304996, 1491424, 1898176, 2609992, 2982848, 5219984, 10439968, 20879936]

約数ペア:

[(1, 20879936), (2, 10439968), (4, 5219984), (7, 2982848), (8, 2609992), (11, 1898176), (14, 1491424), (16, 1304996), (19, 1098944), (22, 949088), (28, 745712), (32, 652498), (38, 549472), (44, 474544), (56, 372856), (64, 326249), (76, 274736), (77, 271168), (88, 237272), (112, 186428), (133, 156992), (152, 137368), (154, 135584), (176, 118636), (209, 99904), (223, 93632), (224, 93214), (266, 78496), (304, 68684), (308, 67792), (352, 59318), (418, 49952), (446, 46816), (448, 46607), (532, 39248), (608, 34342), (616, 33896), (704, 29659), (836, 24976), (892, 23408), (1064, 19624), (1216, 17171), (1232, 16948), (1463, 14272), (1561, 13376), (1672, 12488), (1784, 11704), (2128, 9812), (2453, 8512), (2464, 8474), (2926, 7136), (3122, 6688), (3344, 6244), (3568, 5852), (4237, 4928), (4256, 4906)]