1771306040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{42457}}^1$

素因数の和:42624

約数の個数: 64

約数和(自身を含む): 4585464000

約数和(自身を除く): 2814157960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 149, 280, 298, 596, 745, 1043, 1192, 1490, 2086, 2980, 4172, 5215, 5960, 8344, 10430, 20860, 41720, 42457, 84914, 169828, 212285, 297199, 339656, 424570, 594398, 849140, 1188796, 1485995, 1698280, 2377592, 2971990, 5943980, 6326093, 11887960, 12652186, 25304372, 31630465, 44282651, 50608744, 63260930, 88565302, 126521860, 177130604, 221413255, 253043720, 354261208, 442826510, 885653020, 1771306040]

約数ペア:

[(1, 1771306040), (2, 885653020), (4, 442826510), (5, 354261208), (7, 253043720), (8, 221413255), (10, 177130604), (14, 126521860), (20, 88565302), (28, 63260930), (35, 50608744), (40, 44282651), (56, 31630465), (70, 25304372), (140, 12652186), (149, 11887960), (280, 6326093), (298, 5943980), (596, 2971990), (745, 2377592), (1043, 1698280), (1192, 1485995), (1490, 1188796), (2086, 849140), (2980, 594398), (4172, 424570), (5215, 339656), (5960, 297199), (8344, 212285), (10430, 169828), (20860, 84914), (41720, 42457)]