20509362430

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{641519}}^1$

素因数の和:641688

約数の個数: 32

約数和(自身を含む): 38799129600

約数和(自身を除く): 18289767170

約数列:

[1, 2, 5, 10, 23, 46, 115, 139, 230, 278, 695, 1390, 3197, 6394, 15985, 31970, 641519, 1283038, 3207595, 6415190, 14754937, 29509874, 73774685, 89171141, 147549370, 178342282, 445855705, 891711410, 2050936243, 4101872486, 10254681215, 20509362430]

約数ペア:

[(1, 20509362430), (2, 10254681215), (5, 4101872486), (10, 2050936243), (23, 891711410), (46, 445855705), (115, 178342282), (139, 147549370), (230, 89171141), (278, 73774685), (695, 29509874), (1390, 14754937), (3197, 6415190), (6394, 3207595), (15985, 1283038), (31970, 641519)]