30618420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{72901}}^1$

素因数の和:72920

約数の個数: 48

約数和(自身を含む): 97980288

約数和(自身を除く): 67361868

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 72901, 145802, 218703, 291604, 364505, 437406, 510307, 729010, 874812, 1020614, 1093515, 1458020, 1530921, 2041228, 2187030, 2551535, 3061842, 4374060, 5103070, 6123684, 7654605, 10206140, 15309210, 30618420]

約数ペア:

[(1, 30618420), (2, 15309210), (3, 10206140), (4, 7654605), (5, 6123684), (6, 5103070), (7, 4374060), (10, 3061842), (12, 2551535), (14, 2187030), (15, 2041228), (20, 1530921), (21, 1458020), (28, 1093515), (30, 1020614), (35, 874812), (42, 729010), (60, 510307), (70, 437406), (84, 364505), (105, 291604), (140, 218703), (210, 145802), (420, 72901)]