2605540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{503}}^1$

素因数の和:556

約数の個数: 48

約数和(自身を含む): 6435072

約数和(自身を除く): 3829532

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 70, 74, 140, 148, 185, 259, 370, 503, 518, 740, 1006, 1036, 1295, 2012, 2515, 2590, 3521, 5030, 5180, 7042, 10060, 14084, 17605, 18611, 35210, 37222, 70420, 74444, 93055, 130277, 186110, 260554, 372220, 521108, 651385, 1302770, 2605540]

約数ペア:

[(1, 2605540), (2, 1302770), (4, 651385), (5, 521108), (7, 372220), (10, 260554), (14, 186110), (20, 130277), (28, 93055), (35, 74444), (37, 70420), (70, 37222), (74, 35210), (140, 18611), (148, 17605), (185, 14084), (259, 10060), (370, 7042), (503, 5180), (518, 5030), (740, 3521), (1006, 2590), (1036, 2515), (1295, 2012)]