16380940

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{463}}^1$

素因数の和:562

約数の個数: 48

約数和(自身を含む): 36247680

約数和(自身を除く): 19866740

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 61, 116, 122, 145, 244, 290, 305, 463, 580, 610, 926, 1220, 1769, 1852, 2315, 3538, 4630, 7076, 8845, 9260, 13427, 17690, 26854, 28243, 35380, 53708, 56486, 67135, 112972, 134270, 141215, 268540, 282430, 564860, 819047, 1638094, 3276188, 4095235, 8190470, 16380940]

約数ペア:

[(1, 16380940), (2, 8190470), (4, 4095235), (5, 3276188), (10, 1638094), (20, 819047), (29, 564860), (58, 282430), (61, 268540), (116, 141215), (122, 134270), (145, 112972), (244, 67135), (290, 56486), (305, 53708), (463, 35380), (580, 28243), (610, 26854), (926, 17690), (1220, 13427), (1769, 9260), (1852, 8845), (2315, 7076), (3538, 4630)]