20617575

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{373}}^1$

素因数の和:464

約数の個数: 48

約数和(自身を含む): 37842816

約数和(自身を除く): 17225241

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 67, 75, 165, 201, 275, 335, 373, 737, 825, 1005, 1119, 1675, 1865, 2211, 3685, 4103, 5025, 5595, 9325, 11055, 12309, 18425, 20515, 24991, 27975, 55275, 61545, 74973, 102575, 124955, 274901, 307725, 374865, 624775, 824703, 1374505, 1874325, 4123515, 6872525, 20617575]

約数ペア:

[(1, 20617575), (3, 6872525), (5, 4123515), (11, 1874325), (15, 1374505), (25, 824703), (33, 624775), (55, 374865), (67, 307725), (75, 274901), (165, 124955), (201, 102575), (275, 74973), (335, 61545), (373, 55275), (737, 27975), (825, 24991), (1005, 20515), (1119, 18425), (1675, 12309), (1865, 11055), (2211, 9325), (3685, 5595), (4103, 5025)]