20805190

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{15643}}^1$

素因数の和:15676

約数の個数: 32

約数和(自身を含む): 45054720

約数和(自身を除く): 24249530

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 133, 190, 266, 665, 1330, 15643, 31286, 78215, 109501, 156430, 219002, 297217, 547505, 594434, 1095010, 1486085, 2080519, 2972170, 4161038, 10402595, 20805190]

約数ペア:

[(1, 20805190), (2, 10402595), (5, 4161038), (7, 2972170), (10, 2080519), (14, 1486085), (19, 1095010), (35, 594434), (38, 547505), (70, 297217), (95, 219002), (133, 156430), (190, 109501), (266, 78215), (665, 31286), (1330, 15643)]