68481920

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8231}}^1$

素因数の和:8263

約数の個数: 64

約数和(自身を含む): 176329440

約数和(自身を除く): 107847520

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 260, 320, 416, 520, 640, 832, 1040, 1664, 2080, 4160, 8231, 8320, 16462, 32924, 41155, 65848, 82310, 107003, 131696, 164620, 214006, 263392, 329240, 428012, 526784, 535015, 658480, 856024, 1053568, 1070030, 1316960, 1712048, 2140060, 2633920, 3424096, 4280120, 5267840, 6848192, 8560240, 13696384, 17120480, 34240960, 68481920]

約数ペア:

[(1, 68481920), (2, 34240960), (4, 17120480), (5, 13696384), (8, 8560240), (10, 6848192), (13, 5267840), (16, 4280120), (20, 3424096), (26, 2633920), (32, 2140060), (40, 1712048), (52, 1316960), (64, 1070030), (65, 1053568), (80, 856024), (104, 658480), (128, 535015), (130, 526784), (160, 428012), (208, 329240), (260, 263392), (320, 214006), (416, 164620), (520, 131696), (640, 107003), (832, 82310), (1040, 65848), (1664, 41155), (2080, 32924), (4160, 16462), (8231, 8320)]