489350480

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{68729}}^1$

素因数の和:68831

約数の個数: 40

約数和(自身を含む): 1150540200

約数和(自身を除く): 661189720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 68729, 137458, 274916, 343645, 549832, 687290, 1099664, 1374580, 2749160, 5498320, 6116881, 12233762, 24467524, 30584405, 48935048, 61168810, 97870096, 122337620, 244675240, 489350480]

約数ペア:

[(1, 489350480), (2, 244675240), (4, 122337620), (5, 97870096), (8, 61168810), (10, 48935048), (16, 30584405), (20, 24467524), (40, 12233762), (80, 6116881), (89, 5498320), (178, 2749160), (356, 1374580), (445, 1099664), (712, 687290), (890, 549832), (1424, 343645), (1780, 274916), (3560, 137458), (7120, 68729)]