80992000

素因数分解:

$2^8\times 5^3\times {\mathrm{2531}}^1$

素因数の和:2562

約数の個数: 72

約数和(自身を含む): 201840912

約数和(自身を除く): 120848912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 256, 320, 400, 500, 640, 800, 1000, 1280, 1600, 2000, 2531, 3200, 4000, 5062, 6400, 8000, 10124, 12655, 16000, 20248, 25310, 32000, 40496, 50620, 63275, 80992, 101240, 126550, 161984, 202480, 253100, 316375, 323968, 404960, 506200, 632750, 647936, 809920, 1012400, 1265500, 1619840, 2024800, 2531000, 3239680, 4049600, 5062000, 8099200, 10124000, 16198400, 20248000, 40496000, 80992000]

約数ペア:

[(1, 80992000), (2, 40496000), (4, 20248000), (5, 16198400), (8, 10124000), (10, 8099200), (16, 5062000), (20, 4049600), (25, 3239680), (32, 2531000), (40, 2024800), (50, 1619840), (64, 1265500), (80, 1012400), (100, 809920), (125, 647936), (128, 632750), (160, 506200), (200, 404960), (250, 323968), (256, 316375), (320, 253100), (400, 202480), (500, 161984), (640, 126550), (800, 101240), (1000, 80992), (1280, 63275), (1600, 50620), (2000, 40496), (2531, 32000), (3200, 25310), (4000, 20248), (5062, 16000), (6400, 12655), (8000, 10124)]