128504040

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{152981}}^1$

素因数の和:153002

約数の個数: 64

約数和(自身を含む): 440588160

約数和(自身を除く): 312084120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 152981, 305962, 458943, 611924, 764905, 917886, 1070867, 1223848, 1529810, 1835772, 2141734, 2294715, 3059620, 3212601, 3671544, 4283468, 4589430, 5354335, 6119240, 6425202, 8566936, 9178860, 10708670, 12850404, 16063005, 18357720, 21417340, 25700808, 32126010, 42834680, 64252020, 128504040]

約数ペア:

[(1, 128504040), (2, 64252020), (3, 42834680), (4, 32126010), (5, 25700808), (6, 21417340), (7, 18357720), (8, 16063005), (10, 12850404), (12, 10708670), (14, 9178860), (15, 8566936), (20, 6425202), (21, 6119240), (24, 5354335), (28, 4589430), (30, 4283468), (35, 3671544), (40, 3212601), (42, 3059620), (56, 2294715), (60, 2141734), (70, 1835772), (84, 1529810), (105, 1223848), (120, 1070867), (140, 917886), (168, 764905), (210, 611924), (280, 458943), (420, 305962), (840, 152981)]