621539720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{311}}^1\times {\mathrm{2939}}^1$

素因数の和:3278

約数の個数: 64

約数和(自身を含む): 1485993600

約数和(自身を除く): 864453880

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 311, 340, 622, 680, 1244, 1555, 2488, 2939, 3110, 5287, 5878, 6220, 10574, 11756, 12440, 14695, 21148, 23512, 26435, 29390, 42296, 49963, 52870, 58780, 99926, 105740, 117560, 199852, 211480, 249815, 399704, 499630, 914029, 999260, 1828058, 1998520, 3656116, 4570145, 7312232, 9140290, 15538493, 18280580, 31076986, 36561160, 62153972, 77692465, 124307944, 155384930, 310769860, 621539720]

約数ペア:

[(1, 621539720), (2, 310769860), (4, 155384930), (5, 124307944), (8, 77692465), (10, 62153972), (17, 36561160), (20, 31076986), (34, 18280580), (40, 15538493), (68, 9140290), (85, 7312232), (136, 4570145), (170, 3656116), (311, 1998520), (340, 1828058), (622, 999260), (680, 914029), (1244, 499630), (1555, 399704), (2488, 249815), (2939, 211480), (3110, 199852), (5287, 117560), (5878, 105740), (6220, 99926), (10574, 58780), (11756, 52870), (12440, 49963), (14695, 42296), (21148, 29390), (23512, 26435)]