31365380

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1\times {\mathrm{263}}^1$

素因数の和:428

約数の個数: 48

約数和(自身を含む): 67858560

約数和(自身を除く): 36493180

約数列:

[1, 2, 4, 5, 10, 20, 67, 89, 134, 178, 263, 268, 335, 356, 445, 526, 670, 890, 1052, 1315, 1340, 1780, 2630, 5260, 5963, 11926, 17621, 23407, 23852, 29815, 35242, 46814, 59630, 70484, 88105, 93628, 117035, 119260, 176210, 234070, 352420, 468140, 1568269, 3136538, 6273076, 7841345, 15682690, 31365380]

約数ペア:

[(1, 31365380), (2, 15682690), (4, 7841345), (5, 6273076), (10, 3136538), (20, 1568269), (67, 468140), (89, 352420), (134, 234070), (178, 176210), (263, 119260), (268, 117035), (335, 93628), (356, 88105), (445, 70484), (526, 59630), (670, 46814), (890, 35242), (1052, 29815), (1315, 23852), (1340, 23407), (1780, 17621), (2630, 11926), (5260, 5963)]