81904640

素因数分解:

$2^{10}\times 5^1\times {\mathrm{17}}^1\times {\mathrm{941}}^1$

素因数の和:983

約数の個数: 88

約数和(自身を含む): 208253592

約数和(自身を除く): 126348952

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 256, 272, 320, 340, 512, 544, 640, 680, 941, 1024, 1088, 1280, 1360, 1882, 2176, 2560, 2720, 3764, 4352, 4705, 5120, 5440, 7528, 8704, 9410, 10880, 15056, 15997, 17408, 18820, 21760, 30112, 31994, 37640, 43520, 60224, 63988, 75280, 79985, 87040, 120448, 127976, 150560, 159970, 240896, 255952, 301120, 319940, 481792, 511904, 602240, 639880, 963584, 1023808, 1204480, 1279760, 2047616, 2408960, 2559520, 4095232, 4817920, 5119040, 8190464, 10238080, 16380928, 20476160, 40952320, 81904640]

約数ペア:

[(1, 81904640), (2, 40952320), (4, 20476160), (5, 16380928), (8, 10238080), (10, 8190464), (16, 5119040), (17, 4817920), (20, 4095232), (32, 2559520), (34, 2408960), (40, 2047616), (64, 1279760), (68, 1204480), (80, 1023808), (85, 963584), (128, 639880), (136, 602240), (160, 511904), (170, 481792), (256, 319940), (272, 301120), (320, 255952), (340, 240896), (512, 159970), (544, 150560), (640, 127976), (680, 120448), (941, 87040), (1024, 79985), (1088, 75280), (1280, 63988), (1360, 60224), (1882, 43520), (2176, 37640), (2560, 31994), (2720, 30112), (3764, 21760), (4352, 18820), (4705, 17408), (5120, 15997), (5440, 15056), (7528, 10880), (8704, 9410)]