645988248

素因数分解:

$2^3\times 3^2\times {\mathrm{131}}^1\times {\mathrm{68489}}^1$

素因数の和:68632

約数の個数: 48

約数和(自身を含む): 1762932600

約数和(自身を除く): 1116944352

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 131, 262, 393, 524, 786, 1048, 1179, 1572, 2358, 3144, 4716, 9432, 68489, 136978, 205467, 273956, 410934, 547912, 616401, 821868, 1232802, 1643736, 2465604, 4931208, 8972059, 17944118, 26916177, 35888236, 53832354, 71776472, 80748531, 107664708, 161497062, 215329416, 322994124, 645988248]

約数ペア:

[(1, 645988248), (2, 322994124), (3, 215329416), (4, 161497062), (6, 107664708), (8, 80748531), (9, 71776472), (12, 53832354), (18, 35888236), (24, 26916177), (36, 17944118), (72, 8972059), (131, 4931208), (262, 2465604), (393, 1643736), (524, 1232802), (786, 821868), (1048, 616401), (1179, 547912), (1572, 410934), (2358, 273956), (3144, 205467), (4716, 136978), (9432, 68489)]