178394020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{34439}}^1$

素因数の和:34492

約数の個数: 48

約数和(自身を含む): 439729920

約数和(自身を除く): 261335900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 70, 74, 140, 148, 185, 259, 370, 518, 740, 1036, 1295, 2590, 5180, 34439, 68878, 137756, 172195, 241073, 344390, 482146, 688780, 964292, 1205365, 1274243, 2410730, 2548486, 4821460, 5096972, 6371215, 8919701, 12742430, 17839402, 25484860, 35678804, 44598505, 89197010, 178394020]

約数ペア:

[(1, 178394020), (2, 89197010), (4, 44598505), (5, 35678804), (7, 25484860), (10, 17839402), (14, 12742430), (20, 8919701), (28, 6371215), (35, 5096972), (37, 4821460), (70, 2548486), (74, 2410730), (140, 1274243), (148, 1205365), (185, 964292), (259, 688780), (370, 482146), (518, 344390), (740, 241073), (1036, 172195), (1295, 137756), (2590, 68878), (5180, 34439)]