87954580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{503}}^1\times {\mathrm{1249}}^1$

素因数の和:1768

約数の個数: 48

約数和(自身を含む): 211680000

約数和(自身を除く): 123725420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 503, 1006, 1249, 2012, 2498, 2515, 3521, 4996, 5030, 6245, 7042, 8743, 10060, 12490, 14084, 17486, 17605, 24980, 34972, 35210, 43715, 70420, 87430, 174860, 628247, 1256494, 2512988, 3141235, 4397729, 6282470, 8795458, 12564940, 17590916, 21988645, 43977290, 87954580]

約数ペア:

[(1, 87954580), (2, 43977290), (4, 21988645), (5, 17590916), (7, 12564940), (10, 8795458), (14, 6282470), (20, 4397729), (28, 3141235), (35, 2512988), (70, 1256494), (140, 628247), (503, 174860), (1006, 87430), (1249, 70420), (2012, 43715), (2498, 35210), (2515, 34972), (3521, 24980), (4996, 17605), (5030, 17486), (6245, 14084), (7042, 12490), (8743, 10060)]