81129420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{450719}}^1$

素因数の和:450734

約数の個数: 36

約数和(自身を含む): 246093120

約数和(自身を除く): 164963700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 450719, 901438, 1352157, 1802876, 2253595, 2704314, 4056471, 4507190, 5408628, 6760785, 8112942, 9014380, 13521570, 16225884, 20282355, 27043140, 40564710, 81129420]

約数ペア:

[(1, 81129420), (2, 40564710), (3, 27043140), (4, 20282355), (5, 16225884), (6, 13521570), (9, 9014380), (10, 8112942), (12, 6760785), (15, 5408628), (18, 4507190), (20, 4056471), (30, 2704314), (36, 2253595), (45, 1802876), (60, 1352157), (90, 901438), (180, 450719)]