30340720

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{19961}}^1$

素因数の和:19993

約数の個数: 40

約数和(自身を含む): 74258640

約数和(自身を除く): 43917920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 19961, 39922, 79844, 99805, 159688, 199610, 319376, 379259, 399220, 758518, 798440, 1517036, 1596880, 1896295, 3034072, 3792590, 6068144, 7585180, 15170360, 30340720]

約数ペア:

[(1, 30340720), (2, 15170360), (4, 7585180), (5, 6068144), (8, 3792590), (10, 3034072), (16, 1896295), (19, 1596880), (20, 1517036), (38, 798440), (40, 758518), (76, 399220), (80, 379259), (95, 319376), (152, 199610), (190, 159688), (304, 99805), (380, 79844), (760, 39922), (1520, 19961)]