28905700

素因数分解:

$2^2\times 5^2\times {\mathrm{181}}^1\times {\mathrm{1597}}^1$

素因数の和:1792

約数の個数: 36

約数和(自身を含む): 63111412

約数和(自身を除く): 34205712

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 181, 362, 724, 905, 1597, 1810, 3194, 3620, 4525, 6388, 7985, 9050, 15970, 18100, 31940, 39925, 79850, 159700, 289057, 578114, 1156228, 1445285, 2890570, 5781140, 7226425, 14452850, 28905700]

約数ペア:

[(1, 28905700), (2, 14452850), (4, 7226425), (5, 5781140), (10, 2890570), (20, 1445285), (25, 1156228), (50, 578114), (100, 289057), (181, 159700), (362, 79850), (724, 39925), (905, 31940), (1597, 18100), (1810, 15970), (3194, 9050), (3620, 7985), (4525, 6388)]