28299460

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{431}}^1$

素因数の和:521

約数の個数: 72

約数和(自身を含む): 70326144

約数和(自身を除く): 42026684

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 67, 70, 98, 134, 140, 196, 245, 268, 335, 431, 469, 490, 670, 862, 938, 980, 1340, 1724, 1876, 2155, 2345, 3017, 3283, 4310, 4690, 6034, 6566, 8620, 9380, 12068, 13132, 15085, 16415, 21119, 28877, 30170, 32830, 42238, 57754, 60340, 65660, 84476, 105595, 115508, 144385, 202139, 211190, 288770, 404278, 422380, 577540, 808556, 1010695, 1414973, 2021390, 2829946, 4042780, 5659892, 7074865, 14149730, 28299460]

約数ペア:

[(1, 28299460), (2, 14149730), (4, 7074865), (5, 5659892), (7, 4042780), (10, 2829946), (14, 2021390), (20, 1414973), (28, 1010695), (35, 808556), (49, 577540), (67, 422380), (70, 404278), (98, 288770), (134, 211190), (140, 202139), (196, 144385), (245, 115508), (268, 105595), (335, 84476), (431, 65660), (469, 60340), (490, 57754), (670, 42238), (862, 32830), (938, 30170), (980, 28877), (1340, 21119), (1724, 16415), (1876, 15085), (2155, 13132), (2345, 12068), (3017, 9380), (3283, 8620), (4310, 6566), (4690, 6034)]