1388372275

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1\times {\mathrm{401}}^1$

素因数の和:664

約数の個数: 48

約数和(自身を含む): 1875281760

約数和(自身を除く): 486909485

約数列:

[1, 5, 19, 25, 37, 95, 185, 197, 401, 475, 703, 925, 985, 2005, 3515, 3743, 4925, 7289, 7619, 10025, 14837, 17575, 18715, 36445, 38095, 74185, 78997, 93575, 138491, 182225, 190475, 281903, 370925, 394985, 692455, 1409515, 1500943, 1974925, 2922889, 3462275, 7047575, 7504715, 14614445, 37523575, 55534891, 73072225, 277674455, 1388372275]

約数ペア:

[(1, 1388372275), (5, 277674455), (19, 73072225), (25, 55534891), (37, 37523575), (95, 14614445), (185, 7504715), (197, 7047575), (401, 3462275), (475, 2922889), (703, 1974925), (925, 1500943), (985, 1409515), (2005, 692455), (3515, 394985), (3743, 370925), (4925, 281903), (7289, 190475), (7619, 182225), (10025, 138491), (14837, 93575), (17575, 78997), (18715, 74185), (36445, 38095)]