40912000

素因数分解:

$2^7\times 5^3\times {\mathrm{2557}}^1$

素因数の和:2586

約数の個数: 64

約数和(自身を含む): 101757240

約数和(自身を除く): 60845240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 320, 400, 500, 640, 800, 1000, 1600, 2000, 2557, 3200, 4000, 5114, 8000, 10228, 12785, 16000, 20456, 25570, 40912, 51140, 63925, 81824, 102280, 127850, 163648, 204560, 255700, 319625, 327296, 409120, 511400, 639250, 818240, 1022800, 1278500, 1636480, 2045600, 2557000, 4091200, 5114000, 8182400, 10228000, 20456000, 40912000]

約数ペア:

[(1, 40912000), (2, 20456000), (4, 10228000), (5, 8182400), (8, 5114000), (10, 4091200), (16, 2557000), (20, 2045600), (25, 1636480), (32, 1278500), (40, 1022800), (50, 818240), (64, 639250), (80, 511400), (100, 409120), (125, 327296), (128, 319625), (160, 255700), (200, 204560), (250, 163648), (320, 127850), (400, 102280), (500, 81824), (640, 63925), (800, 51140), (1000, 40912), (1600, 25570), (2000, 20456), (2557, 16000), (3200, 12785), (4000, 10228), (5114, 8000)]