81965500

素因数分解:

$2^2\times 5^3\times {\mathrm{17}}^1\times {\mathrm{9643}}^1$

素因数の和:9679

約数の個数: 48

約数和(自身を含む): 189562464

約数和(自身を除く): 107596964

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 125, 170, 250, 340, 425, 500, 850, 1700, 2125, 4250, 8500, 9643, 19286, 38572, 48215, 96430, 163931, 192860, 241075, 327862, 482150, 655724, 819655, 964300, 1205375, 1639310, 2410750, 3278620, 4098275, 4821500, 8196550, 16393100, 20491375, 40982750, 81965500]

約数ペア:

[(1, 81965500), (2, 40982750), (4, 20491375), (5, 16393100), (10, 8196550), (17, 4821500), (20, 4098275), (25, 3278620), (34, 2410750), (50, 1639310), (68, 1205375), (85, 964300), (100, 819655), (125, 655724), (170, 482150), (250, 327862), (340, 241075), (425, 192860), (500, 163931), (850, 96430), (1700, 48215), (2125, 38572), (4250, 19286), (8500, 9643)]