80344040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{16879}}^1$

素因数の和:16914

約数の個数: 64

約数和(自身を含む): 218764800

約数和(自身を除く): 138420760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 56, 68, 70, 85, 119, 136, 140, 170, 238, 280, 340, 476, 595, 680, 952, 1190, 2380, 4760, 16879, 33758, 67516, 84395, 118153, 135032, 168790, 236306, 286943, 337580, 472612, 573886, 590765, 675160, 945224, 1147772, 1181530, 1434715, 2008601, 2295544, 2363060, 2869430, 4017202, 4726120, 5738860, 8034404, 10043005, 11477720, 16068808, 20086010, 40172020, 80344040]

約数ペア:

[(1, 80344040), (2, 40172020), (4, 20086010), (5, 16068808), (7, 11477720), (8, 10043005), (10, 8034404), (14, 5738860), (17, 4726120), (20, 4017202), (28, 2869430), (34, 2363060), (35, 2295544), (40, 2008601), (56, 1434715), (68, 1181530), (70, 1147772), (85, 945224), (119, 675160), (136, 590765), (140, 573886), (170, 472612), (238, 337580), (280, 286943), (340, 236306), (476, 168790), (595, 135032), (680, 118153), (952, 84395), (1190, 67516), (2380, 33758), (4760, 16879)]