17120020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1171}}^1$

素因数の和:1240

約数の個数: 48

約数和(自身を含む): 38985408

約数和(自身を除く): 21865388

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 43, 68, 85, 86, 170, 172, 215, 340, 430, 731, 860, 1171, 1462, 2342, 2924, 3655, 4684, 5855, 7310, 11710, 14620, 19907, 23420, 39814, 50353, 79628, 99535, 100706, 199070, 201412, 251765, 398140, 503530, 856001, 1007060, 1712002, 3424004, 4280005, 8560010, 17120020]

約数ペア:

[(1, 17120020), (2, 8560010), (4, 4280005), (5, 3424004), (10, 1712002), (17, 1007060), (20, 856001), (34, 503530), (43, 398140), (68, 251765), (85, 201412), (86, 199070), (170, 100706), (172, 99535), (215, 79628), (340, 50353), (430, 39814), (731, 23420), (860, 19907), (1171, 14620), (1462, 11710), (2342, 7310), (2924, 5855), (3655, 4684)]