81460960

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{72733}}^1$

素因数の和:72755

約数の個数: 48

約数和(自身を含む): 219947616

約数和(自身を除く): 138486656

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 72733, 145466, 290932, 363665, 509131, 581864, 727330, 1018262, 1163728, 1454660, 2036524, 2327456, 2545655, 2909320, 4073048, 5091310, 5818640, 8146096, 10182620, 11637280, 16292192, 20365240, 40730480, 81460960]

約数ペア:

[(1, 81460960), (2, 40730480), (4, 20365240), (5, 16292192), (7, 11637280), (8, 10182620), (10, 8146096), (14, 5818640), (16, 5091310), (20, 4073048), (28, 2909320), (32, 2545655), (35, 2327456), (40, 2036524), (56, 1454660), (70, 1163728), (80, 1018262), (112, 727330), (140, 581864), (160, 509131), (224, 363665), (280, 290932), (560, 145466), (1120, 72733)]