20069225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{167}}^1$

素因数の和:230

約数の個数: 48

約数和(自身を含む): 29998080

約数和(自身を除く): 9928855

約数列:

[1, 5, 11, 19, 23, 25, 55, 95, 115, 167, 209, 253, 275, 437, 475, 575, 835, 1045, 1265, 1837, 2185, 3173, 3841, 4175, 4807, 5225, 6325, 9185, 10925, 15865, 19205, 24035, 34903, 42251, 45925, 72979, 79325, 96025, 120175, 174515, 211255, 364895, 802769, 872575, 1056275, 1824475, 4013845, 20069225]

約数ペア:

[(1, 20069225), (5, 4013845), (11, 1824475), (19, 1056275), (23, 872575), (25, 802769), (55, 364895), (95, 211255), (115, 174515), (167, 120175), (209, 96025), (253, 79325), (275, 72979), (437, 45925), (475, 42251), (575, 34903), (835, 24035), (1045, 19205), (1265, 15865), (1837, 10925), (2185, 9185), (3173, 6325), (3841, 5225), (4175, 4807)]