20171655520

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{141179}}^1$

素因数の和:141260

約数の個数: 96

約数和(自身を含む): 51231398400

約数和(自身を除く): 31059742880

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 47, 76, 80, 94, 95, 152, 160, 188, 190, 235, 304, 376, 380, 470, 608, 752, 760, 893, 940, 1504, 1520, 1786, 1880, 3040, 3572, 3760, 4465, 7144, 7520, 8930, 14288, 17860, 28576, 35720, 71440, 141179, 142880, 282358, 564716, 705895, 1129432, 1411790, 2258864, 2682401, 2823580, 4517728, 5364802, 5647160, 6635413, 10729604, 11294320, 13270826, 13412005, 21459208, 22588640, 26541652, 26824010, 33177065, 42918416, 53083304, 53648020, 66354130, 85836832, 106166608, 107296040, 126072847, 132708260, 212333216, 214592080, 252145694, 265416520, 429184160, 504291388, 530833040, 630364235, 1008582776, 1061666080, 1260728470, 2017165552, 2521456940, 4034331104, 5042913880, 10085827760, 20171655520]

約数ペア:

[(1, 20171655520), (2, 10085827760), (4, 5042913880), (5, 4034331104), (8, 2521456940), (10, 2017165552), (16, 1260728470), (19, 1061666080), (20, 1008582776), (32, 630364235), (38, 530833040), (40, 504291388), (47, 429184160), (76, 265416520), (80, 252145694), (94, 214592080), (95, 212333216), (152, 132708260), (160, 126072847), (188, 107296040), (190, 106166608), (235, 85836832), (304, 66354130), (376, 53648020), (380, 53083304), (470, 42918416), (608, 33177065), (752, 26824010), (760, 26541652), (893, 22588640), (940, 21459208), (1504, 13412005), (1520, 13270826), (1786, 11294320), (1880, 10729604), (3040, 6635413), (3572, 5647160), (3760, 5364802), (4465, 4517728), (7144, 2823580), (7520, 2682401), (8930, 2258864), (14288, 1411790), (17860, 1129432), (28576, 705895), (35720, 564716), (71440, 282358), (141179, 142880)]