18381664

素因数分解:

$2^5\times 7^2\times {\mathrm{19}}^1\times {\mathrm{617}}^1$

素因数の和:660

約数の個数: 72

約数和(自身を含む): 44384760

約数和(自身を除く): 26003096

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 38, 49, 56, 76, 98, 112, 133, 152, 196, 224, 266, 304, 392, 532, 608, 617, 784, 931, 1064, 1234, 1568, 1862, 2128, 2468, 3724, 4256, 4319, 4936, 7448, 8638, 9872, 11723, 14896, 17276, 19744, 23446, 29792, 30233, 34552, 46892, 60466, 69104, 82061, 93784, 120932, 138208, 164122, 187568, 241864, 328244, 375136, 483728, 574427, 656488, 967456, 1148854, 1312976, 2297708, 2625952, 4595416, 9190832, 18381664]

約数ペア:

[(1, 18381664), (2, 9190832), (4, 4595416), (7, 2625952), (8, 2297708), (14, 1312976), (16, 1148854), (19, 967456), (28, 656488), (32, 574427), (38, 483728), (49, 375136), (56, 328244), (76, 241864), (98, 187568), (112, 164122), (133, 138208), (152, 120932), (196, 93784), (224, 82061), (266, 69104), (304, 60466), (392, 46892), (532, 34552), (608, 30233), (617, 29792), (784, 23446), (931, 19744), (1064, 17276), (1234, 14896), (1568, 11723), (1862, 9872), (2128, 8638), (2468, 7448), (3724, 4936), (4256, 4319)]