31316480

素因数分解:

$2^9\times 5^1\times {\mathrm{13}}^1\times {\mathrm{941}}^1$

素因数の和:977

約数の個数: 80

約数和(自身を含む): 80947944

約数和(自身を除く): 49631464

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, 512, 520, 640, 832, 941, 1040, 1280, 1664, 1882, 2080, 2560, 3328, 3764, 4160, 4705, 6656, 7528, 8320, 9410, 12233, 15056, 16640, 18820, 24466, 30112, 33280, 37640, 48932, 60224, 61165, 75280, 97864, 120448, 122330, 150560, 195728, 240896, 244660, 301120, 391456, 481792, 489320, 602240, 782912, 978640, 1204480, 1565824, 1957280, 2408960, 3131648, 3914560, 6263296, 7829120, 15658240, 31316480]

約数ペア:

[(1, 31316480), (2, 15658240), (4, 7829120), (5, 6263296), (8, 3914560), (10, 3131648), (13, 2408960), (16, 1957280), (20, 1565824), (26, 1204480), (32, 978640), (40, 782912), (52, 602240), (64, 489320), (65, 481792), (80, 391456), (104, 301120), (128, 244660), (130, 240896), (160, 195728), (208, 150560), (256, 122330), (260, 120448), (320, 97864), (416, 75280), (512, 61165), (520, 60224), (640, 48932), (832, 37640), (941, 33280), (1040, 30112), (1280, 24466), (1664, 18820), (1882, 16640), (2080, 15056), (2560, 12233), (3328, 9410), (3764, 8320), (4160, 7528), (4705, 6656)]