19740486544

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1381613}}^1$

素因数の和:1381687

約数の個数: 40

約数和(自身を含む): 41116832640

約数和(自身を除く): 21376346096

約数列:

[1, 2, 4, 8, 16, 19, 38, 47, 76, 94, 152, 188, 304, 376, 752, 893, 1786, 3572, 7144, 14288, 1381613, 2763226, 5526452, 11052904, 22105808, 26250647, 52501294, 64935811, 105002588, 129871622, 210005176, 259743244, 420010352, 519486488, 1038972976, 1233780409, 2467560818, 4935121636, 9870243272, 19740486544]

約数ペア:

[(1, 19740486544), (2, 9870243272), (4, 4935121636), (8, 2467560818), (16, 1233780409), (19, 1038972976), (38, 519486488), (47, 420010352), (76, 259743244), (94, 210005176), (152, 129871622), (188, 105002588), (304, 64935811), (376, 52501294), (752, 26250647), (893, 22105808), (1786, 11052904), (3572, 5526452), (7144, 2763226), (14288, 1381613)]