280254128

素因数分解:

$2^4\times 7^2\times {\mathrm{11}}^1\times {\mathrm{32497}}^1$

素因数の和:32530

約数の個数: 60

約数和(自身を含む): 689087592

約数和(自身を除く): 408833464

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 49, 56, 77, 88, 98, 112, 154, 176, 196, 308, 392, 539, 616, 784, 1078, 1232, 2156, 4312, 8624, 32497, 64994, 129988, 227479, 259976, 357467, 454958, 519952, 714934, 909916, 1429868, 1592353, 1819832, 2502269, 2859736, 3184706, 3639664, 5004538, 5719472, 6369412, 10009076, 12738824, 17515883, 20018152, 25477648, 35031766, 40036304, 70063532, 140127064, 280254128]

約数ペア:

[(1, 280254128), (2, 140127064), (4, 70063532), (7, 40036304), (8, 35031766), (11, 25477648), (14, 20018152), (16, 17515883), (22, 12738824), (28, 10009076), (44, 6369412), (49, 5719472), (56, 5004538), (77, 3639664), (88, 3184706), (98, 2859736), (112, 2502269), (154, 1819832), (176, 1592353), (196, 1429868), (308, 909916), (392, 714934), (539, 519952), (616, 454958), (784, 357467), (1078, 259976), (1232, 227479), (2156, 129988), (4312, 64994), (8624, 32497)]