87831520

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{659}}^1$

素因数の和:705

約数の個数: 144

約数和(自身を含む): 255966480

約数和(自身を除く): 168134960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 32, 34, 35, 40, 49, 56, 68, 70, 80, 85, 98, 112, 119, 136, 140, 160, 170, 196, 224, 238, 245, 272, 280, 340, 392, 476, 490, 544, 560, 595, 659, 680, 784, 833, 952, 980, 1120, 1190, 1318, 1360, 1568, 1666, 1904, 1960, 2380, 2636, 2720, 3295, 3332, 3808, 3920, 4165, 4613, 4760, 5272, 6590, 6664, 7840, 8330, 9226, 9520, 10544, 11203, 13180, 13328, 16660, 18452, 19040, 21088, 22406, 23065, 26360, 26656, 32291, 33320, 36904, 44812, 46130, 52720, 56015, 64582, 66640, 73808, 78421, 89624, 92260, 105440, 112030, 129164, 133280, 147616, 156842, 161455, 179248, 184520, 224060, 258328, 313684, 322910, 358496, 369040, 392105, 448120, 516656, 548947, 627368, 645820, 738080, 784210, 896240, 1033312, 1097894, 1254736, 1291640, 1568420, 1792480, 2195788, 2509472, 2583280, 2744735, 3136840, 4391576, 5166560, 5489470, 6273680, 8783152, 10978940, 12547360, 17566304, 21957880, 43915760, 87831520]

約数ペア:

[(1, 87831520), (2, 43915760), (4, 21957880), (5, 17566304), (7, 12547360), (8, 10978940), (10, 8783152), (14, 6273680), (16, 5489470), (17, 5166560), (20, 4391576), (28, 3136840), (32, 2744735), (34, 2583280), (35, 2509472), (40, 2195788), (49, 1792480), (56, 1568420), (68, 1291640), (70, 1254736), (80, 1097894), (85, 1033312), (98, 896240), (112, 784210), (119, 738080), (136, 645820), (140, 627368), (160, 548947), (170, 516656), (196, 448120), (224, 392105), (238, 369040), (245, 358496), (272, 322910), (280, 313684), (340, 258328), (392, 224060), (476, 184520), (490, 179248), (544, 161455), (560, 156842), (595, 147616), (659, 133280), (680, 129164), (784, 112030), (833, 105440), (952, 92260), (980, 89624), (1120, 78421), (1190, 73808), (1318, 66640), (1360, 64582), (1568, 56015), (1666, 52720), (1904, 46130), (1960, 44812), (2380, 36904), (2636, 33320), (2720, 32291), (3295, 26656), (3332, 26360), (3808, 23065), (3920, 22406), (4165, 21088), (4613, 19040), (4760, 18452), (5272, 16660), (6590, 13328), (6664, 13180), (7840, 11203), (8330, 10544), (9226, 9520)]