187430980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{19813}}^1$

素因数の和:19876

約数の個数: 48

約数和(自身を含む): 439395264

約数和(自身を除く): 251964284

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 172, 215, 220, 430, 473, 860, 946, 1892, 2365, 4730, 9460, 19813, 39626, 79252, 99065, 198130, 217943, 396260, 435886, 851959, 871772, 1089715, 1703918, 2179430, 3407836, 4259795, 4358860, 8519590, 9371549, 17039180, 18743098, 37486196, 46857745, 93715490, 187430980]

約数ペア:

[(1, 187430980), (2, 93715490), (4, 46857745), (5, 37486196), (10, 18743098), (11, 17039180), (20, 9371549), (22, 8519590), (43, 4358860), (44, 4259795), (55, 3407836), (86, 2179430), (110, 1703918), (172, 1089715), (215, 871772), (220, 851959), (430, 435886), (473, 396260), (860, 217943), (946, 198130), (1892, 99065), (2365, 79252), (4730, 39626), (9460, 19813)]