220407.00000000

素因数分解:

$3^2\times 5^2\times {\mathrm{197}}^1\times {\mathrm{647}}^1$

素因数の和:860

約数の個数: 36

約数和(自身を含む): 51706512

約数和(自身を除く): 23028237

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 197, 225, 591, 647, 985, 1773, 1941, 2955, 3235, 4925, 5823, 8865, 9705, 14775, 16175, 29115, 44325, 48525, 127459, 145575, 382377, 637295, 1147131, 1911885, 3186475, 5735655, 9559425, 28678275]

約数ペア:

[(1, 28678275), (3, 9559425), (5, 5735655), (9, 3186475), (15, 1911885), (25, 1147131), (45, 637295), (75, 382377), (197, 145575), (225, 127459), (591, 48525), (647, 44325), (985, 29115), (1773, 16175), (1941, 14775), (2955, 9705), (3235, 8865), (4925, 5823)]