71480800

素因数分解:

$2^5\times 5^2\times {\mathrm{199}}^1\times {\mathrm{449}}^1$

素因数の和:668

約数の個数: 72

約数和(自身を含む): 175770000

約数和(自身を除く): 104289200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 199, 200, 398, 400, 449, 796, 800, 898, 995, 1592, 1796, 1990, 2245, 3184, 3592, 3980, 4490, 4975, 6368, 7184, 7960, 8980, 9950, 11225, 14368, 15920, 17960, 19900, 22450, 31840, 35920, 39800, 44900, 71840, 79600, 89351, 89800, 159200, 178702, 179600, 357404, 359200, 446755, 714808, 893510, 1429616, 1787020, 2233775, 2859232, 3574040, 4467550, 7148080, 8935100, 14296160, 17870200, 35740400, 71480800]

約数ペア:

[(1, 71480800), (2, 35740400), (4, 17870200), (5, 14296160), (8, 8935100), (10, 7148080), (16, 4467550), (20, 3574040), (25, 2859232), (32, 2233775), (40, 1787020), (50, 1429616), (80, 893510), (100, 714808), (160, 446755), (199, 359200), (200, 357404), (398, 179600), (400, 178702), (449, 159200), (796, 89800), (800, 89351), (898, 79600), (995, 71840), (1592, 44900), (1796, 39800), (1990, 35920), (2245, 31840), (3184, 22450), (3592, 19900), (3980, 17960), (4490, 15920), (4975, 14368), (6368, 11225), (7184, 9950), (7960, 8980)]