90249975

素因数分解:

$3^2\times 5^2\times {\mathrm{211}}^1\times {\mathrm{1901}}^1$

素因数の和:2128

約数の個数: 36

約数和(自身を含む): 162499272

約数和(自身を除く): 72249297

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 211, 225, 633, 1055, 1899, 1901, 3165, 5275, 5703, 9495, 9505, 15825, 17109, 28515, 47475, 47525, 85545, 142575, 401111, 427725, 1203333, 2005555, 3609999, 6016665, 10027775, 18049995, 30083325, 90249975]

約数ペア:

[(1, 90249975), (3, 30083325), (5, 18049995), (9, 10027775), (15, 6016665), (25, 3609999), (45, 2005555), (75, 1203333), (211, 427725), (225, 401111), (633, 142575), (1055, 85545), (1899, 47525), (1901, 47475), (3165, 28515), (5275, 17109), (5703, 15825), (9495, 9505)]