20881008

素因数分解:

$2^4\times 3^2\times {\mathrm{145007}}^1$

素因数の和:145021

約数の個数: 30

約数和(自身を含む): 58438224

約数和(自身を除く): 37557216

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 145007, 290014, 435021, 580028, 870042, 1160056, 1305063, 1740084, 2320112, 2610126, 3480168, 5220252, 6960336, 10440504, 20881008]

約数ペア:

[(1, 20881008), (2, 10440504), (3, 6960336), (4, 5220252), (6, 3480168), (8, 2610126), (9, 2320112), (12, 1740084), (16, 1305063), (18, 1160056), (24, 870042), (36, 580028), (48, 435021), (72, 290014), (144, 145007)]