28357960

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{6883}}^1$

素因数の和:6997

約数の個数: 32

約数和(自身を含む): 64434240

約数和(自身を除く): 36076280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 6883, 13766, 27532, 34415, 55064, 68830, 137660, 275320, 708949, 1417898, 2835796, 3544745, 5671592, 7089490, 14178980, 28357960]

約数ペア:

[(1, 28357960), (2, 14178980), (4, 7089490), (5, 5671592), (8, 3544745), (10, 2835796), (20, 1417898), (40, 708949), (103, 275320), (206, 137660), (412, 68830), (515, 55064), (824, 34415), (1030, 27532), (2060, 13766), (4120, 6883)]