4219390

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{109}}^1$

素因数の和:209

約数の個数: 48

約数和(自身を含む): 9028800

約数和(自身を除く): 4809410

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 79, 98, 109, 158, 218, 245, 395, 490, 545, 553, 763, 790, 1090, 1106, 1526, 2765, 3815, 3871, 5341, 5530, 7630, 7742, 8611, 10682, 17222, 19355, 26705, 38710, 43055, 53410, 60277, 86110, 120554, 301385, 421939, 602770, 843878, 2109695, 4219390]

約数ペア:

[(1, 4219390), (2, 2109695), (5, 843878), (7, 602770), (10, 421939), (14, 301385), (35, 120554), (49, 86110), (70, 60277), (79, 53410), (98, 43055), (109, 38710), (158, 26705), (218, 19355), (245, 17222), (395, 10682), (490, 8611), (545, 7742), (553, 7630), (763, 5530), (790, 5341), (1090, 3871), (1106, 3815), (1526, 2765)]