140845040

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{1543}}^1$

素因数の和:1726

約数の個数: 80

約数和(自身を含む): 376785408

約数和(自身を除く): 235940368

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 163, 280, 326, 560, 652, 815, 1141, 1304, 1543, 1630, 2282, 2608, 3086, 3260, 4564, 5705, 6172, 6520, 7715, 9128, 10801, 11410, 12344, 13040, 15430, 18256, 21602, 22820, 24688, 30860, 43204, 45640, 54005, 61720, 86408, 91280, 108010, 123440, 172816, 216020, 251509, 432040, 503018, 864080, 1006036, 1257545, 1760563, 2012072, 2515090, 3521126, 4024144, 5030180, 7042252, 8802815, 10060360, 14084504, 17605630, 20120720, 28169008, 35211260, 70422520, 140845040]

約数ペア:

[(1, 140845040), (2, 70422520), (4, 35211260), (5, 28169008), (7, 20120720), (8, 17605630), (10, 14084504), (14, 10060360), (16, 8802815), (20, 7042252), (28, 5030180), (35, 4024144), (40, 3521126), (56, 2515090), (70, 2012072), (80, 1760563), (112, 1257545), (140, 1006036), (163, 864080), (280, 503018), (326, 432040), (560, 251509), (652, 216020), (815, 172816), (1141, 123440), (1304, 108010), (1543, 91280), (1630, 86408), (2282, 61720), (2608, 54005), (3086, 45640), (3260, 43204), (4564, 30860), (5705, 24688), (6172, 22820), (6520, 21602), (7715, 18256), (9128, 15430), (10801, 13040), (11410, 12344)]