15564040

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{20479}}^1$

素因数の和:20509

約数の個数: 32

約数和(自身を含む): 36864000

約数和(自身を除く): 21299960

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 20479, 40958, 81916, 102395, 163832, 204790, 389101, 409580, 778202, 819160, 1556404, 1945505, 3112808, 3891010, 7782020, 15564040]

約数ペア:

[(1, 15564040), (2, 7782020), (4, 3891010), (5, 3112808), (8, 1945505), (10, 1556404), (19, 819160), (20, 778202), (38, 409580), (40, 389101), (76, 204790), (95, 163832), (152, 102395), (190, 81916), (380, 40958), (760, 20479)]