20408215215

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1258601}}^1$

素因数の和:1258679

約数の個数: 32

約数和(自身を含む): 34797828096

約数和(自身を除く): 14389612881

約数列:

[1, 3, 5, 15, 23, 47, 69, 115, 141, 235, 345, 705, 1081, 3243, 5405, 16215, 1258601, 3775803, 6293005, 18879015, 28947823, 59154247, 86843469, 144739115, 177462741, 295771235, 434217345, 887313705, 1360547681, 4081643043, 6802738405, 20408215215]

約数ペア:

[(1, 20408215215), (3, 6802738405), (5, 4081643043), (15, 1360547681), (23, 887313705), (47, 434217345), (69, 295771235), (115, 177462741), (141, 144739115), (235, 86843469), (345, 59154247), (705, 28947823), (1081, 18879015), (3243, 6293005), (5405, 3775803), (16215, 1258601)]