84165520

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{11821}}^1$

素因数の和:11923

約数の個数: 40

約数和(自身を含む): 197900280

約数和(自身を除く): 113734760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 11821, 23642, 47284, 59105, 94568, 118210, 189136, 236420, 472840, 945680, 1052069, 2104138, 4208276, 5260345, 8416552, 10520690, 16833104, 21041380, 42082760, 84165520]

約数ペア:

[(1, 84165520), (2, 42082760), (4, 21041380), (5, 16833104), (8, 10520690), (10, 8416552), (16, 5260345), (20, 4208276), (40, 2104138), (80, 1052069), (89, 945680), (178, 472840), (356, 236420), (445, 189136), (712, 118210), (890, 94568), (1424, 59105), (1780, 47284), (3560, 23642), (7120, 11821)]