30900380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{31531}}^1$

素因数の和:31554

約数の個数: 36

約数和(自身を含む): 75487608

約数和(自身を除く): 44587228

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 31531, 63062, 126124, 157655, 220717, 315310, 441434, 630620, 882868, 1103585, 1545019, 2207170, 3090038, 4414340, 6180076, 7725095, 15450190, 30900380]

約数ペア:

[(1, 30900380), (2, 15450190), (4, 7725095), (5, 6180076), (7, 4414340), (10, 3090038), (14, 2207170), (20, 1545019), (28, 1103585), (35, 882868), (49, 630620), (70, 441434), (98, 315310), (140, 220717), (196, 157655), (245, 126124), (490, 63062), (980, 31531)]