27956740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{397}}^1\times {\mathrm{503}}^1$

素因数の和:916

約数の個数: 48

約数和(自身を含む): 67398912

約数和(自身を除く): 39442172

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 397, 503, 794, 1006, 1588, 1985, 2012, 2515, 2779, 3521, 3970, 5030, 5558, 7042, 7940, 10060, 11116, 13895, 14084, 17605, 27790, 35210, 55580, 70420, 199691, 399382, 798764, 998455, 1397837, 1996910, 2795674, 3993820, 5591348, 6989185, 13978370, 27956740]

約数ペア:

[(1, 27956740), (2, 13978370), (4, 6989185), (5, 5591348), (7, 3993820), (10, 2795674), (14, 1996910), (20, 1397837), (28, 998455), (35, 798764), (70, 399382), (140, 199691), (397, 70420), (503, 55580), (794, 35210), (1006, 27790), (1588, 17605), (1985, 14084), (2012, 13895), (2515, 11116), (2779, 10060), (3521, 7940), (3970, 7042), (5030, 5558)]