87290260

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1\times {\mathrm{547}}^1$

素因数の和:736

約数の個数: 48

約数和(自身を含む): 187810560

約数和(自身を除く): 100520300

約数列:

[1, 2, 4, 5, 10, 20, 79, 101, 158, 202, 316, 395, 404, 505, 547, 790, 1010, 1094, 1580, 2020, 2188, 2735, 5470, 7979, 10940, 15958, 31916, 39895, 43213, 55247, 79790, 86426, 110494, 159580, 172852, 216065, 220988, 276235, 432130, 552470, 864260, 1104940, 4364513, 8729026, 17458052, 21822565, 43645130, 87290260]

約数ペア:

[(1, 87290260), (2, 43645130), (4, 21822565), (5, 17458052), (10, 8729026), (20, 4364513), (79, 1104940), (101, 864260), (158, 552470), (202, 432130), (316, 276235), (395, 220988), (404, 216065), (505, 172852), (547, 159580), (790, 110494), (1010, 86426), (1094, 79790), (1580, 55247), (2020, 43213), (2188, 39895), (2735, 31916), (5470, 15958), (7979, 10940)]