30780040

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{7933}}^1$

素因数の和:8041

約数の個数: 32

約数和(自身を含む): 69977880

約数和(自身を除く): 39197840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 7933, 15866, 31732, 39665, 63464, 79330, 158660, 317320, 769501, 1539002, 3078004, 3847505, 6156008, 7695010, 15390020, 30780040]

約数ペア:

[(1, 30780040), (2, 15390020), (4, 7695010), (5, 6156008), (8, 3847505), (10, 3078004), (20, 1539002), (40, 769501), (97, 317320), (194, 158660), (388, 79330), (485, 63464), (776, 39665), (970, 31732), (1940, 15866), (3880, 7933)]