18335860

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{271}}^1$

素因数の和:496

約数の個数: 48

約数和(自身を含む): 41126400

約数和(自身を除く): 22790540

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 199, 271, 340, 398, 542, 796, 995, 1084, 1355, 1990, 2710, 3383, 3980, 4607, 5420, 6766, 9214, 13532, 16915, 18428, 23035, 33830, 46070, 53929, 67660, 92140, 107858, 215716, 269645, 539290, 916793, 1078580, 1833586, 3667172, 4583965, 9167930, 18335860]

約数ペア:

[(1, 18335860), (2, 9167930), (4, 4583965), (5, 3667172), (10, 1833586), (17, 1078580), (20, 916793), (34, 539290), (68, 269645), (85, 215716), (170, 107858), (199, 92140), (271, 67660), (340, 53929), (398, 46070), (542, 33830), (796, 23035), (995, 18428), (1084, 16915), (1355, 13532), (1990, 9214), (2710, 6766), (3383, 5420), (3980, 4607)]