144995380

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{2143}}^1$

素因数の和:2368

約数の個数: 48

約数和(自身を含む): 324172800

約数和(自身を除く): 179177420

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 199, 340, 398, 796, 995, 1990, 2143, 3383, 3980, 4286, 6766, 8572, 10715, 13532, 16915, 21430, 33830, 36431, 42860, 67660, 72862, 145724, 182155, 364310, 426457, 728620, 852914, 1705828, 2132285, 4264570, 7249769, 8529140, 14499538, 28999076, 36248845, 72497690, 144995380]

約数ペア:

[(1, 144995380), (2, 72497690), (4, 36248845), (5, 28999076), (10, 14499538), (17, 8529140), (20, 7249769), (34, 4264570), (68, 2132285), (85, 1705828), (170, 852914), (199, 728620), (340, 426457), (398, 364310), (796, 182155), (995, 145724), (1990, 72862), (2143, 67660), (3383, 42860), (3980, 36431), (4286, 33830), (6766, 21430), (8572, 16915), (10715, 13532)]