80387840

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4831}}^1$

素因数の和:4865

約数の個数: 72

約数和(自身を含む): 207408768

約数和(自身を除く): 127020928

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 520, 640, 832, 1040, 1280, 1664, 2080, 3328, 4160, 4831, 8320, 9662, 16640, 19324, 24155, 38648, 48310, 62803, 77296, 96620, 125606, 154592, 193240, 251212, 309184, 314015, 386480, 502424, 618368, 628030, 772960, 1004848, 1236736, 1256060, 1545920, 2009696, 2512120, 3091840, 4019392, 5024240, 6183680, 8038784, 10048480, 16077568, 20096960, 40193920, 80387840]

約数ペア:

[(1, 80387840), (2, 40193920), (4, 20096960), (5, 16077568), (8, 10048480), (10, 8038784), (13, 6183680), (16, 5024240), (20, 4019392), (26, 3091840), (32, 2512120), (40, 2009696), (52, 1545920), (64, 1256060), (65, 1236736), (80, 1004848), (104, 772960), (128, 628030), (130, 618368), (160, 502424), (208, 386480), (256, 314015), (260, 309184), (320, 251212), (416, 193240), (520, 154592), (640, 125606), (832, 96620), (1040, 77296), (1280, 62803), (1664, 48310), (2080, 38648), (3328, 24155), (4160, 19324), (4831, 16640), (8320, 9662)]