668250280

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{42727}}^1$

素因数の和:42778

約数の個数: 64

約数和(自身を含む): 1661264640

約数和(自身を除く): 993014360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 23, 34, 40, 46, 68, 85, 92, 115, 136, 170, 184, 230, 340, 391, 460, 680, 782, 920, 1564, 1955, 3128, 3910, 7820, 15640, 42727, 85454, 170908, 213635, 341816, 427270, 726359, 854540, 982721, 1452718, 1709080, 1965442, 2905436, 3631795, 3930884, 4913605, 5810872, 7263590, 7861768, 9827210, 14527180, 16706257, 19654420, 29054360, 33412514, 39308840, 66825028, 83531285, 133650056, 167062570, 334125140, 668250280]

約数ペア:

[(1, 668250280), (2, 334125140), (4, 167062570), (5, 133650056), (8, 83531285), (10, 66825028), (17, 39308840), (20, 33412514), (23, 29054360), (34, 19654420), (40, 16706257), (46, 14527180), (68, 9827210), (85, 7861768), (92, 7263590), (115, 5810872), (136, 4913605), (170, 3930884), (184, 3631795), (230, 2905436), (340, 1965442), (391, 1709080), (460, 1452718), (680, 982721), (782, 854540), (920, 726359), (1564, 427270), (1955, 341816), (3128, 213635), (3910, 170908), (7820, 85454), (15640, 42727)]