20005860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1$

素因数の和:170

約数の個数: 192

約数和(自身を含む): 70963200

約数和(自身を除く): 50957340

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 23, 28, 30, 35, 38, 42, 46, 57, 60, 69, 70, 76, 84, 92, 95, 105, 109, 114, 115, 133, 138, 140, 161, 190, 210, 218, 228, 230, 266, 276, 285, 322, 327, 345, 380, 399, 420, 436, 437, 460, 483, 532, 545, 570, 644, 654, 665, 690, 763, 798, 805, 874, 966, 1090, 1140, 1308, 1311, 1330, 1380, 1526, 1596, 1610, 1635, 1748, 1932, 1995, 2071, 2180, 2185, 2289, 2415, 2507, 2622, 2660, 3052, 3059, 3220, 3270, 3815, 3990, 4142, 4370, 4578, 4830, 5014, 5244, 6118, 6213, 6540, 6555, 7521, 7630, 7980, 8284, 8740, 9156, 9177, 9660, 10028, 10355, 11445, 12236, 12426, 12535, 13110, 14497, 15042, 15260, 15295, 17549, 18354, 20710, 22890, 24852, 25070, 26220, 28994, 30084, 30590, 31065, 35098, 36708, 37605, 41420, 43491, 45780, 45885, 47633, 50140, 52647, 57988, 61180, 62130, 70196, 72485, 75210, 86982, 87745, 91770, 95266, 105294, 124260, 142899, 144970, 150420, 173964, 175490, 183540, 190532, 210588, 217455, 238165, 263235, 285798, 289940, 333431, 350980, 434910, 476330, 526470, 571596, 666862, 714495, 869820, 952660, 1000293, 1052940, 1333724, 1428990, 1667155, 2000586, 2857980, 3334310, 4001172, 5001465, 6668620, 10002930, 20005860]

約数ペア:

[(1, 20005860), (2, 10002930), (3, 6668620), (4, 5001465), (5, 4001172), (6, 3334310), (7, 2857980), (10, 2000586), (12, 1667155), (14, 1428990), (15, 1333724), (19, 1052940), (20, 1000293), (21, 952660), (23, 869820), (28, 714495), (30, 666862), (35, 571596), (38, 526470), (42, 476330), (46, 434910), (57, 350980), (60, 333431), (69, 289940), (70, 285798), (76, 263235), (84, 238165), (92, 217455), (95, 210588), (105, 190532), (109, 183540), (114, 175490), (115, 173964), (133, 150420), (138, 144970), (140, 142899), (161, 124260), (190, 105294), (210, 95266), (218, 91770), (228, 87745), (230, 86982), (266, 75210), (276, 72485), (285, 70196), (322, 62130), (327, 61180), (345, 57988), (380, 52647), (399, 50140), (420, 47633), (436, 45885), (437, 45780), (460, 43491), (483, 41420), (532, 37605), (545, 36708), (570, 35098), (644, 31065), (654, 30590), (665, 30084), (690, 28994), (763, 26220), (798, 25070), (805, 24852), (874, 22890), (966, 20710), (1090, 18354), (1140, 17549), (1308, 15295), (1311, 15260), (1330, 15042), (1380, 14497), (1526, 13110), (1596, 12535), (1610, 12426), (1635, 12236), (1748, 11445), (1932, 10355), (1995, 10028), (2071, 9660), (2180, 9177), (2185, 9156), (2289, 8740), (2415, 8284), (2507, 7980), (2622, 7630), (2660, 7521), (3052, 6555), (3059, 6540), (3220, 6213), (3270, 6118), (3815, 5244), (3990, 5014), (4142, 4830), (4370, 4578)]