210798520

素因数分解:

$2^3\times 5^1\times {\mathrm{2131}}^1\times {\mathrm{2473}}^1$

素因数の和:4615

約数の個数: 32

約数和(自身を含む): 474711120

約数和(自身を除く): 263912600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2131, 2473, 4262, 4946, 8524, 9892, 10655, 12365, 17048, 19784, 21310, 24730, 42620, 49460, 85240, 98920, 5269963, 10539926, 21079852, 26349815, 42159704, 52699630, 105399260, 210798520]

約数ペア:

[(1, 210798520), (2, 105399260), (4, 52699630), (5, 42159704), (8, 26349815), (10, 21079852), (20, 10539926), (40, 5269963), (2131, 98920), (2473, 85240), (4262, 49460), (4946, 42620), (8524, 24730), (9892, 21310), (10655, 19784), (12365, 17048)]