64784450

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{383}}^1$

素因数の和:611

約数の個数: 48

約数和(自身を含む): 128563200

約数和(自身を除く): 63778750

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 85, 170, 199, 383, 398, 425, 766, 850, 995, 1915, 1990, 3383, 3830, 4975, 6511, 6766, 9575, 9950, 13022, 16915, 19150, 32555, 33830, 65110, 76217, 84575, 152434, 162775, 169150, 325550, 381085, 762170, 1295689, 1905425, 2591378, 3810850, 6478445, 12956890, 32392225, 64784450]

約数ペア:

[(1, 64784450), (2, 32392225), (5, 12956890), (10, 6478445), (17, 3810850), (25, 2591378), (34, 1905425), (50, 1295689), (85, 762170), (170, 381085), (199, 325550), (383, 169150), (398, 162775), (425, 152434), (766, 84575), (850, 76217), (995, 65110), (1915, 33830), (1990, 32555), (3383, 19150), (3830, 16915), (4975, 13022), (6511, 9950), (6766, 9575)]