21031610840

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{3347}}^1\times {\mathrm{5417}}^1$

素因数の和:8804

約数の個数: 64

約数和(自身を含む): 48976552800

約数和(自身を除く): 27944941960

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 3347, 5417, 6694, 10834, 13388, 16735, 21668, 26776, 27085, 33470, 43336, 54170, 66940, 97063, 108340, 133880, 157093, 194126, 216680, 314186, 388252, 485315, 628372, 776504, 785465, 970630, 1256744, 1570930, 1941260, 3141860, 3882520, 6283720, 18130699, 36261398, 72522796, 90653495, 145045592, 181306990, 362613980, 525790271, 725227960, 1051580542, 2103161084, 2628951355, 4206322168, 5257902710, 10515805420, 21031610840]

約数ペア:

[(1, 21031610840), (2, 10515805420), (4, 5257902710), (5, 4206322168), (8, 2628951355), (10, 2103161084), (20, 1051580542), (29, 725227960), (40, 525790271), (58, 362613980), (116, 181306990), (145, 145045592), (232, 90653495), (290, 72522796), (580, 36261398), (1160, 18130699), (3347, 6283720), (5417, 3882520), (6694, 3141860), (10834, 1941260), (13388, 1570930), (16735, 1256744), (21668, 970630), (26776, 785465), (27085, 776504), (33470, 628372), (43336, 485315), (54170, 388252), (66940, 314186), (97063, 216680), (108340, 194126), (133880, 157093)]