30590980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{353}}^1\times {\mathrm{619}}^1$

素因数の和:988

約数の個数: 48

約数和(自身を含む): 73745280

約数和(自身を除く): 43154300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 353, 619, 706, 1238, 1412, 1765, 2471, 2476, 3095, 3530, 4333, 4942, 6190, 7060, 8666, 9884, 12355, 12380, 17332, 21665, 24710, 43330, 49420, 86660, 218507, 437014, 874028, 1092535, 1529549, 2185070, 3059098, 4370140, 6118196, 7647745, 15295490, 30590980]

約数ペア:

[(1, 30590980), (2, 15295490), (4, 7647745), (5, 6118196), (7, 4370140), (10, 3059098), (14, 2185070), (20, 1529549), (28, 1092535), (35, 874028), (70, 437014), (140, 218507), (353, 86660), (619, 49420), (706, 43330), (1238, 24710), (1412, 21665), (1765, 17332), (2471, 12380), (2476, 12355), (3095, 9884), (3530, 8666), (4333, 7060), (4942, 6190)]