257464240

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{292573}}^1$

素因数の和:292597

約数の個数: 40

約数和(自身を含む): 653025168

約数和(自身を除く): 395560928

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 292573, 585146, 1170292, 1462865, 2340584, 2925730, 3218303, 4681168, 5851460, 6436606, 11702920, 12873212, 16091515, 23405840, 25746424, 32183030, 51492848, 64366060, 128732120, 257464240]

約数ペア:

[(1, 257464240), (2, 128732120), (4, 64366060), (5, 51492848), (8, 32183030), (10, 25746424), (11, 23405840), (16, 16091515), (20, 12873212), (22, 11702920), (40, 6436606), (44, 5851460), (55, 4681168), (80, 3218303), (88, 2925730), (110, 2340584), (176, 1462865), (220, 1170292), (440, 585146), (880, 292573)]