19510520

素因数分解:

$2^3\times 5^1\times {\mathrm{631}}^1\times {\mathrm{773}}^1$

素因数の和:1415

約数の個数: 32

約数和(自身を含む): 44025120

約数和(自身を除く): 24514600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 631, 773, 1262, 1546, 2524, 3092, 3155, 3865, 5048, 6184, 6310, 7730, 12620, 15460, 25240, 30920, 487763, 975526, 1951052, 2438815, 3902104, 4877630, 9755260, 19510520]

約数ペア:

[(1, 19510520), (2, 9755260), (4, 4877630), (5, 3902104), (8, 2438815), (10, 1951052), (20, 975526), (40, 487763), (631, 30920), (773, 25240), (1262, 15460), (1546, 12620), (2524, 7730), (3092, 6310), (3155, 6184), (3865, 5048)]