2043790

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{97}}^1$

素因数の和:161

約数の個数: 48

約数和(自身を含む): 4424112

約数和(自身を除く): 2380322

約数列:

[1, 2, 5, 7, 10, 14, 35, 43, 49, 70, 86, 97, 98, 194, 215, 245, 301, 430, 485, 490, 602, 679, 970, 1358, 1505, 2107, 3010, 3395, 4171, 4214, 4753, 6790, 8342, 9506, 10535, 20855, 21070, 23765, 29197, 41710, 47530, 58394, 145985, 204379, 291970, 408758, 1021895, 2043790]

約数ペア:

[(1, 2043790), (2, 1021895), (5, 408758), (7, 291970), (10, 204379), (14, 145985), (35, 58394), (43, 47530), (49, 41710), (70, 29197), (86, 23765), (97, 21070), (98, 20855), (194, 10535), (215, 9506), (245, 8342), (301, 6790), (430, 4753), (485, 4214), (490, 4171), (602, 3395), (679, 3010), (970, 2107), (1358, 1505)]