61290525

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{907}}^1$

素因数の和:990

約数の個数: 48

約数和(自身を含む): 109439424

約数和(自身を除く): 48148899

約数列:

[1, 3, 5, 15, 17, 25, 51, 53, 75, 85, 159, 255, 265, 425, 795, 901, 907, 1275, 1325, 2703, 2721, 3975, 4505, 4535, 13515, 13605, 15419, 22525, 22675, 46257, 48071, 67575, 68025, 77095, 144213, 231285, 240355, 385475, 721065, 817207, 1156425, 1201775, 2451621, 3605325, 4086035, 12258105, 20430175, 61290525]

約数ペア:

[(1, 61290525), (3, 20430175), (5, 12258105), (15, 4086035), (17, 3605325), (25, 2451621), (51, 1201775), (53, 1156425), (75, 817207), (85, 721065), (159, 385475), (255, 240355), (265, 231285), (425, 144213), (795, 77095), (901, 68025), (907, 67575), (1275, 48071), (1325, 46257), (2703, 22675), (2721, 22525), (3975, 15419), (4505, 13605), (4535, 13515)]