86989980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{991}}^1$

素因数の和:1040

約数の個数: 192

約数和(自身を含む): 319979520

約数和(自身を除く): 232989540

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 19, 20, 21, 22, 28, 30, 33, 35, 38, 42, 44, 55, 57, 60, 66, 70, 76, 77, 84, 95, 105, 110, 114, 132, 133, 140, 154, 165, 190, 209, 210, 220, 228, 231, 266, 285, 308, 330, 380, 385, 399, 418, 420, 462, 532, 570, 627, 660, 665, 770, 798, 836, 924, 991, 1045, 1140, 1155, 1254, 1330, 1463, 1540, 1596, 1982, 1995, 2090, 2310, 2508, 2660, 2926, 2973, 3135, 3964, 3990, 4180, 4389, 4620, 4955, 5852, 5946, 6270, 6937, 7315, 7980, 8778, 9910, 10901, 11892, 12540, 13874, 14630, 14865, 17556, 18829, 19820, 20811, 21802, 21945, 27748, 29260, 29730, 32703, 34685, 37658, 41622, 43604, 43890, 54505, 56487, 59460, 65406, 69370, 75316, 76307, 83244, 87780, 94145, 104055, 109010, 112974, 130812, 131803, 138740, 152614, 163515, 188290, 207119, 208110, 218020, 225948, 228921, 263606, 282435, 305228, 327030, 376580, 381535, 395409, 414238, 416220, 457842, 527212, 564870, 621357, 654060, 659015, 763070, 790818, 828476, 915684, 1035595, 1129740, 1144605, 1242714, 1318030, 1449833, 1526140, 1581636, 1977045, 2071190, 2289210, 2485428, 2636060, 2899666, 3106785, 3954090, 4142380, 4349499, 4578420, 5799332, 6213570, 7249165, 7908180, 8698998, 12427140, 14498330, 17397996, 21747495, 28996660, 43494990, 86989980]

約数ペア:

[(1, 86989980), (2, 43494990), (3, 28996660), (4, 21747495), (5, 17397996), (6, 14498330), (7, 12427140), (10, 8698998), (11, 7908180), (12, 7249165), (14, 6213570), (15, 5799332), (19, 4578420), (20, 4349499), (21, 4142380), (22, 3954090), (28, 3106785), (30, 2899666), (33, 2636060), (35, 2485428), (38, 2289210), (42, 2071190), (44, 1977045), (55, 1581636), (57, 1526140), (60, 1449833), (66, 1318030), (70, 1242714), (76, 1144605), (77, 1129740), (84, 1035595), (95, 915684), (105, 828476), (110, 790818), (114, 763070), (132, 659015), (133, 654060), (140, 621357), (154, 564870), (165, 527212), (190, 457842), (209, 416220), (210, 414238), (220, 395409), (228, 381535), (231, 376580), (266, 327030), (285, 305228), (308, 282435), (330, 263606), (380, 228921), (385, 225948), (399, 218020), (418, 208110), (420, 207119), (462, 188290), (532, 163515), (570, 152614), (627, 138740), (660, 131803), (665, 130812), (770, 112974), (798, 109010), (836, 104055), (924, 94145), (991, 87780), (1045, 83244), (1140, 76307), (1155, 75316), (1254, 69370), (1330, 65406), (1463, 59460), (1540, 56487), (1596, 54505), (1982, 43890), (1995, 43604), (2090, 41622), (2310, 37658), (2508, 34685), (2660, 32703), (2926, 29730), (2973, 29260), (3135, 27748), (3964, 21945), (3990, 21802), (4180, 20811), (4389, 19820), (4620, 18829), (4955, 17556), (5852, 14865), (5946, 14630), (6270, 13874), (6937, 12540), (7315, 11892), (7980, 10901), (8778, 9910)]