640470

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{577}}^1$

素因数の和:624

約数の個数: 32

約数和(自身を含む): 1581408

約数和(自身を除く): 940938

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 37, 74, 111, 185, 222, 370, 555, 577, 1110, 1154, 1731, 2885, 3462, 5770, 8655, 17310, 21349, 42698, 64047, 106745, 128094, 213490, 320235, 640470]

約数ペア:

[(1, 640470), (2, 320235), (3, 213490), (5, 128094), (6, 106745), (10, 64047), (15, 42698), (30, 21349), (37, 17310), (74, 8655), (111, 5770), (185, 3462), (222, 2885), (370, 1731), (555, 1154), (577, 1110)]