72640000

素因数分解:

$2^9\times 5^4\times {\mathrm{227}}^1$

素因数の和:265

約数の個数: 100

約数和(自身を含む): 182163564

約数和(自身を除く): 109523564

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 227, 250, 256, 320, 400, 454, 500, 512, 625, 640, 800, 908, 1000, 1135, 1250, 1280, 1600, 1816, 2000, 2270, 2500, 2560, 3200, 3632, 4000, 4540, 5000, 5675, 6400, 7264, 8000, 9080, 10000, 11350, 12800, 14528, 16000, 18160, 20000, 22700, 28375, 29056, 32000, 36320, 40000, 45400, 56750, 58112, 64000, 72640, 80000, 90800, 113500, 116224, 141875, 145280, 160000, 181600, 227000, 283750, 290560, 320000, 363200, 454000, 567500, 581120, 726400, 908000, 1135000, 1452800, 1816000, 2270000, 2905600, 3632000, 4540000, 7264000, 9080000, 14528000, 18160000, 36320000, 72640000]

約数ペア:

[(1, 72640000), (2, 36320000), (4, 18160000), (5, 14528000), (8, 9080000), (10, 7264000), (16, 4540000), (20, 3632000), (25, 2905600), (32, 2270000), (40, 1816000), (50, 1452800), (64, 1135000), (80, 908000), (100, 726400), (125, 581120), (128, 567500), (160, 454000), (200, 363200), (227, 320000), (250, 290560), (256, 283750), (320, 227000), (400, 181600), (454, 160000), (500, 145280), (512, 141875), (625, 116224), (640, 113500), (800, 90800), (908, 80000), (1000, 72640), (1135, 64000), (1250, 58112), (1280, 56750), (1600, 45400), (1816, 40000), (2000, 36320), (2270, 32000), (2500, 29056), (2560, 28375), (3200, 22700), (3632, 20000), (4000, 18160), (4540, 16000), (5000, 14528), (5675, 12800), (6400, 11350), (7264, 10000), (8000, 9080)]