281918960

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{193}}^1$

素因数の和:287

約数の個数: 120

約数和(自身を含む): 716628240

約数和(自身を除く): 434709280

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 38, 40, 62, 76, 80, 95, 124, 152, 155, 190, 193, 248, 304, 310, 380, 386, 496, 589, 620, 760, 772, 961, 965, 1178, 1240, 1520, 1544, 1922, 1930, 2356, 2480, 2945, 3088, 3667, 3844, 3860, 4712, 4805, 5890, 5983, 7334, 7688, 7720, 9424, 9610, 11780, 11966, 14668, 15376, 15440, 18259, 18335, 19220, 23560, 23932, 29336, 29915, 36518, 36670, 38440, 47120, 47864, 58672, 59830, 73036, 73340, 76880, 91295, 95728, 113677, 119660, 146072, 146680, 182590, 185473, 227354, 239320, 292144, 293360, 365180, 370946, 454708, 478640, 568385, 730360, 741892, 909416, 927365, 1136770, 1460720, 1483784, 1818832, 1854730, 2273540, 2967568, 3523987, 3709460, 4547080, 7047974, 7418920, 9094160, 14095948, 14837840, 17619935, 28191896, 35239870, 56383792, 70479740, 140959480, 281918960]

約数ペア:

[(1, 281918960), (2, 140959480), (4, 70479740), (5, 56383792), (8, 35239870), (10, 28191896), (16, 17619935), (19, 14837840), (20, 14095948), (31, 9094160), (38, 7418920), (40, 7047974), (62, 4547080), (76, 3709460), (80, 3523987), (95, 2967568), (124, 2273540), (152, 1854730), (155, 1818832), (190, 1483784), (193, 1460720), (248, 1136770), (304, 927365), (310, 909416), (380, 741892), (386, 730360), (496, 568385), (589, 478640), (620, 454708), (760, 370946), (772, 365180), (961, 293360), (965, 292144), (1178, 239320), (1240, 227354), (1520, 185473), (1544, 182590), (1922, 146680), (1930, 146072), (2356, 119660), (2480, 113677), (2945, 95728), (3088, 91295), (3667, 76880), (3844, 73340), (3860, 73036), (4712, 59830), (4805, 58672), (5890, 47864), (5983, 47120), (7334, 38440), (7688, 36670), (7720, 36518), (9424, 29915), (9610, 29336), (11780, 23932), (11966, 23560), (14668, 19220), (15376, 18335), (15440, 18259)]