1978880

素因数分解:

$2^9\times 5^1\times {\mathrm{773}}^1$

素因数の和:796

約数の個数: 40

約数和(自身を含む): 4750812

約数和(自身を除く): 2771932

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 773, 1280, 1546, 2560, 3092, 3865, 6184, 7730, 12368, 15460, 24736, 30920, 49472, 61840, 98944, 123680, 197888, 247360, 395776, 494720, 989440, 1978880]

約数ペア:

[(1, 1978880), (2, 989440), (4, 494720), (5, 395776), (8, 247360), (10, 197888), (16, 123680), (20, 98944), (32, 61840), (40, 49472), (64, 30920), (80, 24736), (128, 15460), (160, 12368), (256, 7730), (320, 6184), (512, 3865), (640, 3092), (773, 2560), (1280, 1546)]