64558400

素因数分解:

$2^6\times 5^2\times {\mathrm{157}}^1\times {\mathrm{257}}^1$

素因数の和:436

約数の個数: 84

約数和(自身を含む): 160487868

約数和(自身を除く): 95929468

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 157, 160, 200, 257, 314, 320, 400, 514, 628, 785, 800, 1028, 1256, 1285, 1570, 1600, 2056, 2512, 2570, 3140, 3925, 4112, 5024, 5140, 6280, 6425, 7850, 8224, 10048, 10280, 12560, 12850, 15700, 16448, 20560, 25120, 25700, 31400, 40349, 41120, 50240, 51400, 62800, 80698, 82240, 102800, 125600, 161396, 201745, 205600, 251200, 322792, 403490, 411200, 645584, 806980, 1008725, 1291168, 1613960, 2017450, 2582336, 3227920, 4034900, 6455840, 8069800, 12911680, 16139600, 32279200, 64558400]

約数ペア:

[(1, 64558400), (2, 32279200), (4, 16139600), (5, 12911680), (8, 8069800), (10, 6455840), (16, 4034900), (20, 3227920), (25, 2582336), (32, 2017450), (40, 1613960), (50, 1291168), (64, 1008725), (80, 806980), (100, 645584), (157, 411200), (160, 403490), (200, 322792), (257, 251200), (314, 205600), (320, 201745), (400, 161396), (514, 125600), (628, 102800), (785, 82240), (800, 80698), (1028, 62800), (1256, 51400), (1285, 50240), (1570, 41120), (1600, 40349), (2056, 31400), (2512, 25700), (2570, 25120), (3140, 20560), (3925, 16448), (4112, 15700), (5024, 12850), (5140, 12560), (6280, 10280), (6425, 10048), (7850, 8224)]