678248775

素因数分解:

$3^3\times 5^2\times {\mathrm{47}}^1\times {\mathrm{21379}}^1$

素因数の和:21445

約数の個数: 48

約数和(自身を含む): 1272537600

約数和(自身を除く): 594288825

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 47, 75, 135, 141, 225, 235, 423, 675, 705, 1175, 1269, 2115, 3525, 6345, 10575, 21379, 31725, 64137, 106895, 192411, 320685, 534475, 577233, 962055, 1004813, 1603425, 2886165, 3014439, 4810275, 5024065, 9043317, 14430825, 15072195, 25120325, 27129951, 45216585, 75360975, 135649755, 226082925, 678248775]

約数ペア:

[(1, 678248775), (3, 226082925), (5, 135649755), (9, 75360975), (15, 45216585), (25, 27129951), (27, 25120325), (45, 15072195), (47, 14430825), (75, 9043317), (135, 5024065), (141, 4810275), (225, 3014439), (235, 2886165), (423, 1603425), (675, 1004813), (705, 962055), (1175, 577233), (1269, 534475), (2115, 320685), (3525, 192411), (6345, 106895), (10575, 64137), (21379, 31725)]