890686190

素因数分解:

$2^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1\times {\mathrm{199}}^1$

素因数の和:449

約数の個数: 64

約数和(自身を含む): 1679616000

約数和(自身を除く): 788929810

約数列:

[1, 2, 5, 10, 47, 89, 94, 107, 178, 199, 214, 235, 398, 445, 470, 535, 890, 995, 1070, 1990, 4183, 5029, 8366, 9353, 9523, 10058, 17711, 18706, 19046, 20915, 21293, 25145, 35422, 41830, 42586, 46765, 47615, 50290, 88555, 93530, 95230, 106465, 177110, 212930, 447581, 832417, 895162, 1000771, 1664834, 1895077, 2001542, 2237905, 3790154, 4162085, 4475810, 5003855, 8324170, 9475385, 10007710, 18950770, 89068619, 178137238, 445343095, 890686190]

約数ペア:

[(1, 890686190), (2, 445343095), (5, 178137238), (10, 89068619), (47, 18950770), (89, 10007710), (94, 9475385), (107, 8324170), (178, 5003855), (199, 4475810), (214, 4162085), (235, 3790154), (398, 2237905), (445, 2001542), (470, 1895077), (535, 1664834), (890, 1000771), (995, 895162), (1070, 832417), (1990, 447581), (4183, 212930), (5029, 177110), (8366, 106465), (9353, 95230), (9523, 93530), (10058, 88555), (17711, 50290), (18706, 47615), (19046, 46765), (20915, 42586), (21293, 41830), (25145, 35422)]