30961240

素因数分解:

$2^3\times 5^1\times {\mathrm{661}}^1\times {\mathrm{1171}}^1$

素因数の和:1843

約数の個数: 32

約数和(自身を含む): 69827760

約数和(自身を除く): 38866520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 661, 1171, 1322, 2342, 2644, 3305, 4684, 5288, 5855, 6610, 9368, 11710, 13220, 23420, 26440, 46840, 774031, 1548062, 3096124, 3870155, 6192248, 7740310, 15480620, 30961240]

約数ペア:

[(1, 30961240), (2, 15480620), (4, 7740310), (5, 6192248), (8, 3870155), (10, 3096124), (20, 1548062), (40, 774031), (661, 46840), (1171, 26440), (1322, 23420), (2342, 13220), (2644, 11710), (3305, 9368), (4684, 6610), (5288, 5855)]