78190990

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{401}}^1$

素因数の和:493

約数の個数: 64

約数和(自身を含む): 158381568

約数和(自身を除く): 80190578

約数列:

[1, 2, 5, 10, 17, 31, 34, 37, 62, 74, 85, 155, 170, 185, 310, 370, 401, 527, 629, 802, 1054, 1147, 1258, 2005, 2294, 2635, 3145, 4010, 5270, 5735, 6290, 6817, 11470, 12431, 13634, 14837, 19499, 24862, 29674, 34085, 38998, 62155, 68170, 74185, 97495, 124310, 148370, 194990, 211327, 252229, 422654, 459947, 504458, 919894, 1056635, 1261145, 2113270, 2299735, 2522290, 4599470, 7819099, 15638198, 39095495, 78190990]

約数ペア:

[(1, 78190990), (2, 39095495), (5, 15638198), (10, 7819099), (17, 4599470), (31, 2522290), (34, 2299735), (37, 2113270), (62, 1261145), (74, 1056635), (85, 919894), (155, 504458), (170, 459947), (185, 422654), (310, 252229), (370, 211327), (401, 194990), (527, 148370), (629, 124310), (802, 97495), (1054, 74185), (1147, 68170), (1258, 62155), (2005, 38998), (2294, 34085), (2635, 29674), (3145, 24862), (4010, 19499), (5270, 14837), (5735, 13634), (6290, 12431), (6817, 11470)]