18913664

素因数分解:

$2^7\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1$

素因数の和:152

約数の個数: 128

約数和(自身を含む): 49939200

約数和(自身を除く): 31025536

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 19, 22, 28, 32, 38, 44, 56, 64, 76, 77, 88, 101, 112, 128, 133, 152, 154, 176, 202, 209, 224, 266, 304, 308, 352, 404, 418, 448, 532, 608, 616, 704, 707, 808, 836, 896, 1064, 1111, 1216, 1232, 1408, 1414, 1463, 1616, 1672, 1919, 2128, 2222, 2432, 2464, 2828, 2926, 3232, 3344, 3838, 4256, 4444, 4928, 5656, 5852, 6464, 6688, 7676, 7777, 8512, 8888, 9856, 11312, 11704, 12928, 13376, 13433, 15352, 15554, 17024, 17776, 21109, 22624, 23408, 26752, 26866, 30704, 31108, 35552, 42218, 45248, 46816, 53732, 61408, 62216, 71104, 84436, 90496, 93632, 107464, 122816, 124432, 142208, 147763, 168872, 187264, 214928, 245632, 248864, 295526, 337744, 429856, 497728, 591052, 675488, 859712, 995456, 1182104, 1350976, 1719424, 2364208, 2701952, 4728416, 9456832, 18913664]

約数ペア:

[(1, 18913664), (2, 9456832), (4, 4728416), (7, 2701952), (8, 2364208), (11, 1719424), (14, 1350976), (16, 1182104), (19, 995456), (22, 859712), (28, 675488), (32, 591052), (38, 497728), (44, 429856), (56, 337744), (64, 295526), (76, 248864), (77, 245632), (88, 214928), (101, 187264), (112, 168872), (128, 147763), (133, 142208), (152, 124432), (154, 122816), (176, 107464), (202, 93632), (209, 90496), (224, 84436), (266, 71104), (304, 62216), (308, 61408), (352, 53732), (404, 46816), (418, 45248), (448, 42218), (532, 35552), (608, 31108), (616, 30704), (704, 26866), (707, 26752), (808, 23408), (836, 22624), (896, 21109), (1064, 17776), (1111, 17024), (1216, 15554), (1232, 15352), (1408, 13433), (1414, 13376), (1463, 12928), (1616, 11704), (1672, 11312), (1919, 9856), (2128, 8888), (2222, 8512), (2432, 7777), (2464, 7676), (2828, 6688), (2926, 6464), (3232, 5852), (3344, 5656), (3838, 4928), (4256, 4444)]