159956248000

素因数分解:

$2^6\times 5^3\times {\mathrm{19994531}}^1$

素因数の和:19994558

約数の個数: 56

約数和(自身を含む): 396131667984

約数和(自身を除く): 236175419984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 160, 200, 250, 320, 400, 500, 800, 1000, 1600, 2000, 4000, 8000, 19994531, 39989062, 79978124, 99972655, 159956248, 199945310, 319912496, 399890620, 499863275, 639824992, 799781240, 999726550, 1279649984, 1599562480, 1999453100, 2499316375, 3199124960, 3998906200, 4998632750, 6398249920, 7997812400, 9997265500, 15995624800, 19994531000, 31991249600, 39989062000, 79978124000, 159956248000]

約数ペア:

[(1, 159956248000), (2, 79978124000), (4, 39989062000), (5, 31991249600), (8, 19994531000), (10, 15995624800), (16, 9997265500), (20, 7997812400), (25, 6398249920), (32, 4998632750), (40, 3998906200), (50, 3199124960), (64, 2499316375), (80, 1999453100), (100, 1599562480), (125, 1279649984), (160, 999726550), (200, 799781240), (250, 639824992), (320, 499863275), (400, 399890620), (500, 319912496), (800, 199945310), (1000, 159956248), (1600, 99972655), (2000, 79978124), (4000, 39989062), (8000, 19994531)]