205003820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1129}}^1\times {\mathrm{1297}}^1$

素因数の和:2442

約数の個数: 48

約数和(自身を含む): 492824640

約数和(自身を除く): 287820820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1129, 1297, 2258, 2594, 4516, 5188, 5645, 6485, 7903, 9079, 11290, 12970, 15806, 18158, 22580, 25940, 31612, 36316, 39515, 45395, 79030, 90790, 158060, 181580, 1464313, 2928626, 5857252, 7321565, 10250191, 14643130, 20500382, 29286260, 41000764, 51250955, 102501910, 205003820]

約数ペア:

[(1, 205003820), (2, 102501910), (4, 51250955), (5, 41000764), (7, 29286260), (10, 20500382), (14, 14643130), (20, 10250191), (28, 7321565), (35, 5857252), (70, 2928626), (140, 1464313), (1129, 181580), (1297, 158060), (2258, 90790), (2594, 79030), (4516, 45395), (5188, 39515), (5645, 36316), (6485, 31612), (7903, 25940), (9079, 22580), (11290, 18158), (12970, 15806)]