30240140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{3541}}^1$

素因数の和:3618

約数の個数: 48

約数和(自身を含む): 73786944

約数和(自身を除く): 43546804

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 140, 244, 305, 427, 610, 854, 1220, 1708, 2135, 3541, 4270, 7082, 8540, 14164, 17705, 24787, 35410, 49574, 70820, 99148, 123935, 216001, 247870, 432002, 495740, 864004, 1080005, 1512007, 2160010, 3024014, 4320020, 6048028, 7560035, 15120070, 30240140]

約数ペア:

[(1, 30240140), (2, 15120070), (4, 7560035), (5, 6048028), (7, 4320020), (10, 3024014), (14, 2160010), (20, 1512007), (28, 1080005), (35, 864004), (61, 495740), (70, 432002), (122, 247870), (140, 216001), (244, 123935), (305, 99148), (427, 70820), (610, 49574), (854, 35410), (1220, 24787), (1708, 17705), (2135, 14164), (3541, 8540), (4270, 7082)]