783478275

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{379}}^1\times {\mathrm{641}}^1$

素因数の和:1076

約数の個数: 48

約数和(自身を含む): 1331045760

約数和(自身を除く): 547567485

約数列:

[1, 3, 5, 15, 25, 43, 75, 129, 215, 379, 641, 645, 1075, 1137, 1895, 1923, 3205, 3225, 5685, 9475, 9615, 16025, 16297, 27563, 28425, 48075, 48891, 81485, 82689, 137815, 242939, 244455, 407425, 413445, 689075, 728817, 1214695, 1222275, 2067225, 3644085, 6073475, 10446377, 18220425, 31339131, 52231885, 156695655, 261159425, 783478275]

約数ペア:

[(1, 783478275), (3, 261159425), (5, 156695655), (15, 52231885), (25, 31339131), (43, 18220425), (75, 10446377), (129, 6073475), (215, 3644085), (379, 2067225), (641, 1222275), (645, 1214695), (1075, 728817), (1137, 689075), (1895, 413445), (1923, 407425), (3205, 244455), (3225, 242939), (5685, 137815), (9475, 82689), (9615, 81485), (16025, 48891), (16297, 48075), (27563, 28425)]