490986520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31393}}^1$

素因数の和:31444

約数の個数: 64

約数和(自身を含む): 1220598720

約数和(自身を除く): 729612200

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, 31393, 62786, 125572, 156965, 251144, 313930, 533681, 627860, 722039, 1067362, 1255720, 1444078, 2134724, 2668405, 2888156, 3610195, 4269448, 5336810, 5776312, 7220390, 10673620, 12274663, 14440780, 21347240, 24549326, 28881560, 49098652, 61373315, 98197304, 122746630, 245493260, 490986520]

約数ペア:

[(1, 490986520), (2, 245493260), (4, 122746630), (5, 98197304), (8, 61373315), (10, 49098652), (17, 28881560), (20, 24549326), (23, 21347240), (34, 14440780), (40, 12274663), (46, 10673620), (68, 7220390), (85, 5776312), (92, 5336810), (115, 4269448), (136, 3610195), (170, 2888156), (184, 2668405), (230, 2134724), (340, 1444078), (391, 1255720), (460, 1067362), (680, 722039), (782, 627860), (920, 533681), (1564, 313930), (1955, 251144), (3128, 156965), (3910, 125572), (7820, 62786), (15640, 31393)]