28631820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{68171}}^1$

素因数の和:68190

約数の個数: 48

約数和(自身を含む): 91623168

約数和(自身を除く): 62991348

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 68171, 136342, 204513, 272684, 340855, 409026, 477197, 681710, 818052, 954394, 1022565, 1363420, 1431591, 1908788, 2045130, 2385985, 2863182, 4090260, 4771970, 5726364, 7157955, 9543940, 14315910, 28631820]

約数ペア:

[(1, 28631820), (2, 14315910), (3, 9543940), (4, 7157955), (5, 5726364), (6, 4771970), (7, 4090260), (10, 2863182), (12, 2385985), (14, 2045130), (15, 1908788), (20, 1431591), (21, 1363420), (28, 1022565), (30, 954394), (35, 818052), (42, 681710), (60, 477197), (70, 409026), (84, 340855), (105, 272684), (140, 204513), (210, 136342), (420, 68171)]