30821945

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{359}}^1$

素因数の和:605

約数の個数: 32

約数和(自身を含む): 46448640

約数和(自身を除く): 15626695

約数列:

[1, 5, 7, 11, 35, 55, 77, 223, 359, 385, 1115, 1561, 1795, 2453, 2513, 3949, 7805, 12265, 12565, 17171, 19745, 27643, 80057, 85855, 138215, 400285, 560399, 880627, 2801995, 4403135, 6164389, 30821945]

約数ペア:

[(1, 30821945), (5, 6164389), (7, 4403135), (11, 2801995), (35, 880627), (55, 560399), (77, 400285), (223, 138215), (359, 85855), (385, 80057), (1115, 27643), (1561, 19745), (1795, 17171), (2453, 12565), (2513, 12265), (3949, 7805)]