201554780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{643}}^1\times {\mathrm{2239}}^1$

素因数の和:2898

約数の個数: 48

約数和(自身を含む): 484700160

約数和(自身を除く): 283145380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 643, 1286, 2239, 2572, 3215, 4478, 4501, 6430, 8956, 9002, 11195, 12860, 15673, 18004, 22390, 22505, 31346, 44780, 45010, 62692, 78365, 90020, 156730, 313460, 1439677, 2879354, 5758708, 7198385, 10077739, 14396770, 20155478, 28793540, 40310956, 50388695, 100777390, 201554780]

約数ペア:

[(1, 201554780), (2, 100777390), (4, 50388695), (5, 40310956), (7, 28793540), (10, 20155478), (14, 14396770), (20, 10077739), (28, 7198385), (35, 5758708), (70, 2879354), (140, 1439677), (643, 313460), (1286, 156730), (2239, 90020), (2572, 78365), (3215, 62692), (4478, 45010), (4501, 44780), (6430, 31346), (8956, 22505), (9002, 22390), (11195, 18004), (12860, 15673)]