30402820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{217163}}^1$

素因数の和:217179

約数の個数: 24

約数和(自身を含む): 72967104

約数和(自身を除く): 42564284

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 217163, 434326, 868652, 1085815, 1520141, 2171630, 3040282, 4343260, 6080564, 7600705, 15201410, 30402820]

約数ペア:

[(1, 30402820), (2, 15201410), (4, 7600705), (5, 6080564), (7, 4343260), (10, 3040282), (14, 2171630), (20, 1520141), (28, 1085815), (35, 868652), (70, 434326), (140, 217163)]