31392340

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{311}}^1$

素因数の和:437

約数の個数: 72

約数和(自身を含む): 77680512

約数和(自身を除く): 46288172

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 103, 140, 196, 206, 245, 311, 412, 490, 515, 622, 721, 980, 1030, 1244, 1442, 1555, 2060, 2177, 2884, 3110, 3605, 4354, 5047, 6220, 7210, 8708, 10094, 10885, 14420, 15239, 20188, 21770, 25235, 30478, 32033, 43540, 50470, 60956, 64066, 76195, 100940, 128132, 152390, 160165, 224231, 304780, 320330, 448462, 640660, 896924, 1121155, 1569617, 2242310, 3139234, 4484620, 6278468, 7848085, 15696170, 31392340]

約数ペア:

[(1, 31392340), (2, 15696170), (4, 7848085), (5, 6278468), (7, 4484620), (10, 3139234), (14, 2242310), (20, 1569617), (28, 1121155), (35, 896924), (49, 640660), (70, 448462), (98, 320330), (103, 304780), (140, 224231), (196, 160165), (206, 152390), (245, 128132), (311, 100940), (412, 76195), (490, 64066), (515, 60956), (622, 50470), (721, 43540), (980, 32033), (1030, 30478), (1244, 25235), (1442, 21770), (1555, 20188), (2060, 15239), (2177, 14420), (2884, 10885), (3110, 10094), (3605, 8708), (4354, 7210), (5047, 6220)]