19788800

素因数分解:

$2^{10}\times 5^2\times {\mathrm{773}}^1$

素因数の和:803

約数の個数: 66

約数和(自身を含む): 49115718

約数和(自身を除く): 29326918

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 400, 512, 640, 773, 800, 1024, 1280, 1546, 1600, 2560, 3092, 3200, 3865, 5120, 6184, 6400, 7730, 12368, 12800, 15460, 19325, 24736, 25600, 30920, 38650, 49472, 61840, 77300, 98944, 123680, 154600, 197888, 247360, 309200, 395776, 494720, 618400, 791552, 989440, 1236800, 1978880, 2473600, 3957760, 4947200, 9894400, 19788800]

約数ペア:

[(1, 19788800), (2, 9894400), (4, 4947200), (5, 3957760), (8, 2473600), (10, 1978880), (16, 1236800), (20, 989440), (25, 791552), (32, 618400), (40, 494720), (50, 395776), (64, 309200), (80, 247360), (100, 197888), (128, 154600), (160, 123680), (200, 98944), (256, 77300), (320, 61840), (400, 49472), (512, 38650), (640, 30920), (773, 25600), (800, 24736), (1024, 19325), (1280, 15460), (1546, 12800), (1600, 12368), (2560, 7730), (3092, 6400), (3200, 6184), (3865, 5120)]