893440

素因数分解:

$2^9\times 5^1\times {\mathrm{349}}^1$

素因数の和:372

約数の個数: 40

約数和(自身を含む): 2148300

約数和(自身を除く): 1254860

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 349, 512, 640, 698, 1280, 1396, 1745, 2560, 2792, 3490, 5584, 6980, 11168, 13960, 22336, 27920, 44672, 55840, 89344, 111680, 178688, 223360, 446720, 893440]

約数ペア:

[(1, 893440), (2, 446720), (4, 223360), (5, 178688), (8, 111680), (10, 89344), (16, 55840), (20, 44672), (32, 27920), (40, 22336), (64, 13960), (80, 11168), (128, 6980), (160, 5584), (256, 3490), (320, 2792), (349, 2560), (512, 1745), (640, 1396), (698, 1280)]