218530900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{4397}}^1$

素因数の和:4489

約数の個数: 72

約数和(自身を含む): 549714816

約数和(自身を除く): 331183916

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 71, 100, 140, 142, 175, 284, 350, 355, 497, 700, 710, 994, 1420, 1775, 1988, 2485, 3550, 4397, 4970, 7100, 8794, 9940, 12425, 17588, 21985, 24850, 30779, 43970, 49700, 61558, 87940, 109925, 123116, 153895, 219850, 307790, 312187, 439700, 615580, 624374, 769475, 1248748, 1538950, 1560935, 2185309, 3077900, 3121870, 4370618, 6243740, 7804675, 8741236, 10926545, 15609350, 21853090, 31218700, 43706180, 54632725, 109265450, 218530900]

約数ペア:

[(1, 218530900), (2, 109265450), (4, 54632725), (5, 43706180), (7, 31218700), (10, 21853090), (14, 15609350), (20, 10926545), (25, 8741236), (28, 7804675), (35, 6243740), (50, 4370618), (70, 3121870), (71, 3077900), (100, 2185309), (140, 1560935), (142, 1538950), (175, 1248748), (284, 769475), (350, 624374), (355, 615580), (497, 439700), (700, 312187), (710, 307790), (994, 219850), (1420, 153895), (1775, 123116), (1988, 109925), (2485, 87940), (3550, 61558), (4397, 49700), (4970, 43970), (7100, 30779), (8794, 24850), (9940, 21985), (12425, 17588)]