87235840

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1$

素因数の和:268

約数の個数: 144

約数和(自身を含む): 233997120

約数和(自身を除く): 146761280

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 32, 34, 38, 40, 64, 68, 76, 80, 85, 95, 128, 136, 152, 160, 170, 190, 211, 256, 272, 304, 320, 323, 340, 380, 422, 544, 608, 640, 646, 680, 760, 844, 1055, 1088, 1216, 1280, 1292, 1360, 1520, 1615, 1688, 2110, 2176, 2432, 2584, 2720, 3040, 3230, 3376, 3587, 4009, 4220, 4352, 4864, 5168, 5440, 6080, 6460, 6752, 7174, 8018, 8440, 10336, 10880, 12160, 12920, 13504, 14348, 16036, 16880, 17935, 20045, 20672, 21760, 24320, 25840, 27008, 28696, 32072, 33760, 35870, 40090, 41344, 51680, 54016, 57392, 64144, 67520, 68153, 71740, 80180, 82688, 103360, 114784, 128288, 135040, 136306, 143480, 160360, 206720, 229568, 256576, 270080, 272612, 286960, 320720, 340765, 413440, 459136, 513152, 545224, 573920, 641440, 681530, 918272, 1026304, 1090448, 1147840, 1282880, 1363060, 2180896, 2295680, 2565760, 2726120, 4361792, 4591360, 5131520, 5452240, 8723584, 10904480, 17447168, 21808960, 43617920, 87235840]

約数ペア:

[(1, 87235840), (2, 43617920), (4, 21808960), (5, 17447168), (8, 10904480), (10, 8723584), (16, 5452240), (17, 5131520), (19, 4591360), (20, 4361792), (32, 2726120), (34, 2565760), (38, 2295680), (40, 2180896), (64, 1363060), (68, 1282880), (76, 1147840), (80, 1090448), (85, 1026304), (95, 918272), (128, 681530), (136, 641440), (152, 573920), (160, 545224), (170, 513152), (190, 459136), (211, 413440), (256, 340765), (272, 320720), (304, 286960), (320, 272612), (323, 270080), (340, 256576), (380, 229568), (422, 206720), (544, 160360), (608, 143480), (640, 136306), (646, 135040), (680, 128288), (760, 114784), (844, 103360), (1055, 82688), (1088, 80180), (1216, 71740), (1280, 68153), (1292, 67520), (1360, 64144), (1520, 57392), (1615, 54016), (1688, 51680), (2110, 41344), (2176, 40090), (2432, 35870), (2584, 33760), (2720, 32072), (3040, 28696), (3230, 27008), (3376, 25840), (3587, 24320), (4009, 21760), (4220, 20672), (4352, 20045), (4864, 17935), (5168, 16880), (5440, 16036), (6080, 14348), (6460, 13504), (6752, 12920), (7174, 12160), (8018, 10880), (8440, 10336)]