21103438250

素因数分解:

$2^1\times 5^3\times {\mathrm{103}}^1\times {\mathrm{739}}^1\times {\mathrm{1109}}^1$

素因数の和:1968

約数の個数: 64

約数和(自身を含む): 39979180800

約数和(自身を除く): 18875742550

約数列:

[1, 2, 5, 10, 25, 50, 103, 125, 206, 250, 515, 739, 1030, 1109, 1478, 2218, 2575, 3695, 5150, 5545, 7390, 11090, 12875, 18475, 25750, 27725, 36950, 55450, 76117, 92375, 114227, 138625, 152234, 184750, 228454, 277250, 380585, 571135, 761170, 819551, 1142270, 1639102, 1902925, 2855675, 3805850, 4097755, 5711350, 8195510, 9514625, 14278375, 19029250, 20488775, 28556750, 40977550, 84413753, 102443875, 168827506, 204887750, 422068765, 844137530, 2110343825, 4220687650, 10551719125, 21103438250]

約数ペア:

[(1, 21103438250), (2, 10551719125), (5, 4220687650), (10, 2110343825), (25, 844137530), (50, 422068765), (103, 204887750), (125, 168827506), (206, 102443875), (250, 84413753), (515, 40977550), (739, 28556750), (1030, 20488775), (1109, 19029250), (1478, 14278375), (2218, 9514625), (2575, 8195510), (3695, 5711350), (5150, 4097755), (5545, 3805850), (7390, 2855675), (11090, 1902925), (12875, 1639102), (18475, 1142270), (25750, 819551), (27725, 761170), (36950, 571135), (55450, 380585), (76117, 277250), (92375, 228454), (114227, 184750), (138625, 152234)]