71687560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{503}}^1\times {\mathrm{509}}^1$

素因数の和:1030

約数の個数: 64

約数和(自身を含む): 185068800

約数和(自身を除く): 113381240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 503, 509, 1006, 1018, 2012, 2036, 2515, 2545, 3521, 3563, 4024, 4072, 5030, 5090, 7042, 7126, 10060, 10180, 14084, 14252, 17605, 17815, 20120, 20360, 28168, 28504, 35210, 35630, 70420, 71260, 140840, 142520, 256027, 512054, 1024108, 1280135, 1792189, 2048216, 2560270, 3584378, 5120540, 7168756, 8960945, 10241080, 14337512, 17921890, 35843780, 71687560]

約数ペア:

[(1, 71687560), (2, 35843780), (4, 17921890), (5, 14337512), (7, 10241080), (8, 8960945), (10, 7168756), (14, 5120540), (20, 3584378), (28, 2560270), (35, 2048216), (40, 1792189), (56, 1280135), (70, 1024108), (140, 512054), (280, 256027), (503, 142520), (509, 140840), (1006, 71260), (1018, 70420), (2012, 35630), (2036, 35210), (2515, 28504), (2545, 28168), (3521, 20360), (3563, 20120), (4024, 17815), (4072, 17605), (5030, 14252), (5090, 14084), (7042, 10180), (7126, 10060)]