71297500

素因数分解:

$2^2\times 5^4\times {\mathrm{19}}^2\times {\mathrm{79}}^1$

素因数の和:141

約数の個数: 90

約数和(自身を含む): 166634160

約数和(自身を除く): 95336660

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 79, 95, 100, 125, 158, 190, 250, 316, 361, 380, 395, 475, 500, 625, 722, 790, 950, 1250, 1444, 1501, 1580, 1805, 1900, 1975, 2375, 2500, 3002, 3610, 3950, 4750, 6004, 7220, 7505, 7900, 9025, 9500, 9875, 11875, 15010, 18050, 19750, 23750, 28519, 30020, 36100, 37525, 39500, 45125, 47500, 49375, 57038, 75050, 90250, 98750, 114076, 142595, 150100, 180500, 187625, 197500, 225625, 285190, 375250, 451250, 570380, 712975, 750500, 902500, 938125, 1425950, 1876250, 2851900, 3564875, 3752500, 7129750, 14259500, 17824375, 35648750, 71297500]

約数ペア:

[(1, 71297500), (2, 35648750), (4, 17824375), (5, 14259500), (10, 7129750), (19, 3752500), (20, 3564875), (25, 2851900), (38, 1876250), (50, 1425950), (76, 938125), (79, 902500), (95, 750500), (100, 712975), (125, 570380), (158, 451250), (190, 375250), (250, 285190), (316, 225625), (361, 197500), (380, 187625), (395, 180500), (475, 150100), (500, 142595), (625, 114076), (722, 98750), (790, 90250), (950, 75050), (1250, 57038), (1444, 49375), (1501, 47500), (1580, 45125), (1805, 39500), (1900, 37525), (1975, 36100), (2375, 30020), (2500, 28519), (3002, 23750), (3610, 19750), (3950, 18050), (4750, 15010), (6004, 11875), (7220, 9875), (7505, 9500), (7900, 9025)]