888889720

素因数分解:

$2^3\times 5^1\times {\mathrm{653}}^1\times {\mathrm{34031}}^1$

素因数の和:34695

約数の個数: 32

約数和(自身を含む): 2003123520

約数和(自身を除く): 1114233800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 653, 1306, 2612, 3265, 5224, 6530, 13060, 26120, 34031, 68062, 136124, 170155, 272248, 340310, 680620, 1361240, 22222243, 44444486, 88888972, 111111215, 177777944, 222222430, 444444860, 888889720]

約数ペア:

[(1, 888889720), (2, 444444860), (4, 222222430), (5, 177777944), (8, 111111215), (10, 88888972), (20, 44444486), (40, 22222243), (653, 1361240), (1306, 680620), (2612, 340310), (3265, 272248), (5224, 170155), (6530, 136124), (13060, 68062), (26120, 34031)]