19990776

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3769}}^1$

素因数の和:3808

約数の個数: 64

約数和(自身を含む): 57002400

約数和(自身を除く): 37011624

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 17, 24, 26, 34, 39, 51, 52, 68, 78, 102, 104, 136, 156, 204, 221, 312, 408, 442, 663, 884, 1326, 1768, 2652, 3769, 5304, 7538, 11307, 15076, 22614, 30152, 45228, 48997, 64073, 90456, 97994, 128146, 146991, 192219, 195988, 256292, 293982, 384438, 391976, 512584, 587964, 768876, 832949, 1175928, 1537752, 1665898, 2498847, 3331796, 4997694, 6663592, 9995388, 19990776]

約数ペア:

[(1, 19990776), (2, 9995388), (3, 6663592), (4, 4997694), (6, 3331796), (8, 2498847), (12, 1665898), (13, 1537752), (17, 1175928), (24, 832949), (26, 768876), (34, 587964), (39, 512584), (51, 391976), (52, 384438), (68, 293982), (78, 256292), (102, 195988), (104, 192219), (136, 146991), (156, 128146), (204, 97994), (221, 90456), (312, 64073), (408, 48997), (442, 45228), (663, 30152), (884, 22614), (1326, 15076), (1768, 11307), (2652, 7538), (3769, 5304)]