90488020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{353}}^1\times {\mathrm{1831}}^1$

素因数の和:2200

約数の個数: 48

約数和(自身を含む): 217905408

約数和(自身を除く): 127417388

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 353, 706, 1412, 1765, 1831, 2471, 3530, 3662, 4942, 7060, 7324, 9155, 9884, 12355, 12817, 18310, 24710, 25634, 36620, 49420, 51268, 64085, 128170, 256340, 646343, 1292686, 2585372, 3231715, 4524401, 6463430, 9048802, 12926860, 18097604, 22622005, 45244010, 90488020]

約数ペア:

[(1, 90488020), (2, 45244010), (4, 22622005), (5, 18097604), (7, 12926860), (10, 9048802), (14, 6463430), (20, 4524401), (28, 3231715), (35, 2585372), (70, 1292686), (140, 646343), (353, 256340), (706, 128170), (1412, 64085), (1765, 51268), (1831, 49420), (2471, 36620), (3530, 25634), (3662, 24710), (4942, 18310), (7060, 12817), (7324, 12355), (9155, 9884)]