81159900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{97}}^1\times {\mathrm{2789}}^1$

素因数の和:2903

約数の個数: 72

約数和(自身を含む): 237328560

約数和(自身を除く): 156168660

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 97, 100, 150, 194, 291, 300, 388, 485, 582, 970, 1164, 1455, 1940, 2425, 2789, 2910, 4850, 5578, 5820, 7275, 8367, 9700, 11156, 13945, 14550, 16734, 27890, 29100, 33468, 41835, 55780, 69725, 83670, 139450, 167340, 209175, 270533, 278900, 418350, 541066, 811599, 836700, 1082132, 1352665, 1623198, 2705330, 3246396, 4057995, 5410660, 6763325, 8115990, 13526650, 16231980, 20289975, 27053300, 40579950, 81159900]

約数ペア:

[(1, 81159900), (2, 40579950), (3, 27053300), (4, 20289975), (5, 16231980), (6, 13526650), (10, 8115990), (12, 6763325), (15, 5410660), (20, 4057995), (25, 3246396), (30, 2705330), (50, 1623198), (60, 1352665), (75, 1082132), (97, 836700), (100, 811599), (150, 541066), (194, 418350), (291, 278900), (300, 270533), (388, 209175), (485, 167340), (582, 139450), (970, 83670), (1164, 69725), (1455, 55780), (1940, 41835), (2425, 33468), (2789, 29100), (2910, 27890), (4850, 16734), (5578, 14550), (5820, 13945), (7275, 11156), (8367, 9700)]