304080220

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{214141}}^1$

素因数の和:214221

約数の個数: 24

約数和(自身を含む): 647565408

約数和(自身を除く): 343485188

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 214141, 428282, 856564, 1070705, 2141410, 4282820, 15204011, 30408022, 60816044, 76020055, 152040110, 304080220]

約数ペア:

[(1, 304080220), (2, 152040110), (4, 76020055), (5, 60816044), (10, 30408022), (20, 15204011), (71, 4282820), (142, 2141410), (284, 1070705), (355, 856564), (710, 428282), (1420, 214141)]