25497520

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^2\times {\mathrm{71}}^1$

素因数の和:218

約数の個数: 60

約数和(自身を含む): 61027344

約数和(自身を除く): 35529824

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 71, 80, 134, 142, 268, 284, 335, 355, 536, 568, 670, 710, 1072, 1136, 1340, 1420, 2680, 2840, 4489, 4757, 5360, 5680, 8978, 9514, 17956, 19028, 22445, 23785, 35912, 38056, 44890, 47570, 71824, 76112, 89780, 95140, 179560, 190280, 318719, 359120, 380560, 637438, 1274876, 1593595, 2549752, 3187190, 5099504, 6374380, 12748760, 25497520]

約数ペア:

[(1, 25497520), (2, 12748760), (4, 6374380), (5, 5099504), (8, 3187190), (10, 2549752), (16, 1593595), (20, 1274876), (40, 637438), (67, 380560), (71, 359120), (80, 318719), (134, 190280), (142, 179560), (268, 95140), (284, 89780), (335, 76112), (355, 71824), (536, 47570), (568, 44890), (670, 38056), (710, 35912), (1072, 23785), (1136, 22445), (1340, 19028), (1420, 17956), (2680, 9514), (2840, 8978), (4489, 5680), (4757, 5360)]