200655980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{204751}}^1$

素因数の和:204774

約数の個数: 36

約数和(自身を含む): 490176288

約数和(自身を除く): 289520308

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 204751, 409502, 819004, 1023755, 1433257, 2047510, 2866514, 4095020, 5733028, 7166285, 10032799, 14332570, 20065598, 28665140, 40131196, 50163995, 100327990, 200655980]

約数ペア:

[(1, 200655980), (2, 100327990), (4, 50163995), (5, 40131196), (7, 28665140), (10, 20065598), (14, 14332570), (20, 10032799), (28, 7166285), (35, 5733028), (49, 4095020), (70, 2866514), (98, 2047510), (140, 1433257), (196, 1023755), (245, 819004), (490, 409502), (980, 204751)]