28508620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{269}}^1\times {\mathrm{757}}^1$

素因数の和:1042

約数の個数: 48

約数和(自身を含む): 68765760

約数和(自身を除く): 40257140

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 269, 538, 757, 1076, 1345, 1514, 1883, 2690, 3028, 3766, 3785, 5299, 5380, 7532, 7570, 9415, 10598, 15140, 18830, 21196, 26495, 37660, 52990, 105980, 203633, 407266, 814532, 1018165, 1425431, 2036330, 2850862, 4072660, 5701724, 7127155, 14254310, 28508620]

約数ペア:

[(1, 28508620), (2, 14254310), (4, 7127155), (5, 5701724), (7, 4072660), (10, 2850862), (14, 2036330), (20, 1425431), (28, 1018165), (35, 814532), (70, 407266), (140, 203633), (269, 105980), (538, 52990), (757, 37660), (1076, 26495), (1345, 21196), (1514, 18830), (1883, 15140), (2690, 10598), (3028, 9415), (3766, 7570), (3785, 7532), (5299, 5380)]