28445890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23509}}^1$

素因数の和:23538

約数の個数: 24

約数和(自身を含む): 56282940

約数和(自身を除く): 27837050

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 242, 605, 1210, 23509, 47018, 117545, 235090, 258599, 517198, 1292995, 2585990, 2844589, 5689178, 14222945, 28445890]

約数ペア:

[(1, 28445890), (2, 14222945), (5, 5689178), (10, 2844589), (11, 2585990), (22, 1292995), (55, 517198), (110, 258599), (121, 235090), (242, 117545), (605, 47018), (1210, 23509)]