646205560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{16139}}^1$

素因数の和:16181

約数の個数: 128

約数和(自身を含む): 1952294400

約数和(自身を除く): 1306088840

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 20, 22, 26, 28, 35, 40, 44, 52, 55, 56, 65, 70, 77, 88, 91, 104, 110, 130, 140, 143, 154, 182, 220, 260, 280, 286, 308, 364, 385, 440, 455, 520, 572, 616, 715, 728, 770, 910, 1001, 1144, 1430, 1540, 1820, 2002, 2860, 3080, 3640, 4004, 5005, 5720, 8008, 10010, 16139, 20020, 32278, 40040, 64556, 80695, 112973, 129112, 161390, 177529, 209807, 225946, 322780, 355058, 419614, 451892, 564865, 645560, 710116, 839228, 887645, 903784, 1049035, 1129730, 1242703, 1420232, 1468649, 1678456, 1775290, 2098070, 2259460, 2307877, 2485406, 2937298, 3550580, 4196140, 4518920, 4615754, 4970812, 5874596, 6213515, 7101160, 7343245, 8392280, 9231508, 9941624, 11539385, 11749192, 12427030, 14686490, 16155139, 18463016, 23078770, 24854060, 29372980, 32310278, 46157540, 49708120, 58745960, 64620556, 80775695, 92315080, 129241112, 161551390, 323102780, 646205560]

約数ペア:

[(1, 646205560), (2, 323102780), (4, 161551390), (5, 129241112), (7, 92315080), (8, 80775695), (10, 64620556), (11, 58745960), (13, 49708120), (14, 46157540), (20, 32310278), (22, 29372980), (26, 24854060), (28, 23078770), (35, 18463016), (40, 16155139), (44, 14686490), (52, 12427030), (55, 11749192), (56, 11539385), (65, 9941624), (70, 9231508), (77, 8392280), (88, 7343245), (91, 7101160), (104, 6213515), (110, 5874596), (130, 4970812), (140, 4615754), (143, 4518920), (154, 4196140), (182, 3550580), (220, 2937298), (260, 2485406), (280, 2307877), (286, 2259460), (308, 2098070), (364, 1775290), (385, 1678456), (440, 1468649), (455, 1420232), (520, 1242703), (572, 1129730), (616, 1049035), (715, 903784), (728, 887645), (770, 839228), (910, 710116), (1001, 645560), (1144, 564865), (1430, 451892), (1540, 419614), (1820, 355058), (2002, 322780), (2860, 225946), (3080, 209807), (3640, 177529), (4004, 161390), (5005, 129112), (5720, 112973), (8008, 80695), (10010, 64556), (16139, 40040), (20020, 32278)]