639081245

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{611561}}^1$

素因数の和:611596

約数の個数: 16

約数和(自身を含む): 880649280

約数和(自身を除く): 241568035

約数列:

[1, 5, 11, 19, 55, 95, 209, 1045, 611561, 3057805, 6727171, 11619659, 33635855, 58098295, 127816249, 639081245]

約数ペア:

[(1, 639081245), (5, 127816249), (11, 58098295), (19, 33635855), (55, 11619659), (95, 6727171), (209, 3057805), (1045, 611561)]