30213890

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{197}}^1\times {\mathrm{313}}^1$

素因数の和:531

約数の個数: 48

約数和(自身を含む): 63788472

約数和(自身を除く): 33574582

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 197, 245, 313, 394, 490, 626, 985, 1379, 1565, 1970, 2191, 2758, 3130, 4382, 6895, 9653, 10955, 13790, 15337, 19306, 21910, 30674, 48265, 61661, 76685, 96530, 123322, 153370, 308305, 431627, 616610, 863254, 2158135, 3021389, 4316270, 6042778, 15106945, 30213890]

約数ペア:

[(1, 30213890), (2, 15106945), (5, 6042778), (7, 4316270), (10, 3021389), (14, 2158135), (35, 863254), (49, 616610), (70, 431627), (98, 308305), (197, 153370), (245, 123322), (313, 96530), (394, 76685), (490, 61661), (626, 48265), (985, 30674), (1379, 21910), (1565, 19306), (1970, 15337), (2191, 13790), (2758, 10955), (3130, 9653), (4382, 6895)]