201721920

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{210127}}^1$

素因数の和:210147

約数の個数: 56

約数和(自身を含む): 640470144

約数和(自身を除く): 438748224

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 160, 192, 240, 320, 480, 960, 210127, 420254, 630381, 840508, 1050635, 1260762, 1681016, 2101270, 2521524, 3151905, 3362032, 4202540, 5043048, 6303810, 6724064, 8405080, 10086096, 12607620, 13448128, 16810160, 20172192, 25215240, 33620320, 40344384, 50430480, 67240640, 100860960, 201721920]

約数ペア:

[(1, 201721920), (2, 100860960), (3, 67240640), (4, 50430480), (5, 40344384), (6, 33620320), (8, 25215240), (10, 20172192), (12, 16810160), (15, 13448128), (16, 12607620), (20, 10086096), (24, 8405080), (30, 6724064), (32, 6303810), (40, 5043048), (48, 4202540), (60, 3362032), (64, 3151905), (80, 2521524), (96, 2101270), (120, 1681016), (160, 1260762), (192, 1050635), (240, 840508), (320, 630381), (480, 420254), (960, 210127)]