281680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{503}}^1$

素因数の和:523

約数の個数: 40

約数和(自身を含む): 749952

約数和(自身を除く): 468272

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 503, 560, 1006, 2012, 2515, 3521, 4024, 5030, 7042, 8048, 10060, 14084, 17605, 20120, 28168, 35210, 40240, 56336, 70420, 140840, 281680]

約数ペア:

[(1, 281680), (2, 140840), (4, 70420), (5, 56336), (7, 40240), (8, 35210), (10, 28168), (14, 20120), (16, 17605), (20, 14084), (28, 10060), (35, 8048), (40, 7042), (56, 5030), (70, 4024), (80, 3521), (112, 2515), (140, 2012), (280, 1006), (503, 560)]