80072020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{283}}^1$

素因数の和:389

約数の個数: 96

約数和(自身を含む): 201535488

約数和(自身を除く): 121463468

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 47, 70, 86, 94, 140, 172, 188, 215, 235, 283, 301, 329, 430, 470, 566, 602, 658, 860, 940, 1132, 1204, 1316, 1415, 1505, 1645, 1981, 2021, 2830, 3010, 3290, 3962, 4042, 5660, 6020, 6580, 7924, 8084, 9905, 10105, 12169, 13301, 14147, 19810, 20210, 24338, 26602, 28294, 39620, 40420, 48676, 53204, 56588, 60845, 66505, 70735, 85183, 93107, 121690, 133010, 141470, 170366, 186214, 243380, 266020, 282940, 340732, 372428, 425915, 465535, 571943, 851830, 931070, 1143886, 1703660, 1862140, 2287772, 2859715, 4003601, 5719430, 8007202, 11438860, 16014404, 20018005, 40036010, 80072020]

約数ペア:

[(1, 80072020), (2, 40036010), (4, 20018005), (5, 16014404), (7, 11438860), (10, 8007202), (14, 5719430), (20, 4003601), (28, 2859715), (35, 2287772), (43, 1862140), (47, 1703660), (70, 1143886), (86, 931070), (94, 851830), (140, 571943), (172, 465535), (188, 425915), (215, 372428), (235, 340732), (283, 282940), (301, 266020), (329, 243380), (430, 186214), (470, 170366), (566, 141470), (602, 133010), (658, 121690), (860, 93107), (940, 85183), (1132, 70735), (1204, 66505), (1316, 60845), (1415, 56588), (1505, 53204), (1645, 48676), (1981, 40420), (2021, 39620), (2830, 28294), (3010, 26602), (3290, 24338), (3962, 20210), (4042, 19810), (5660, 14147), (6020, 13301), (6580, 12169), (7924, 10105), (8084, 9905)]