28519000

素因数分解:

$2^3\times 5^3\times {\mathrm{19}}^2\times {\mathrm{79}}^1$

素因数の和:138

約数の個数: 96

約数和(自身を含む): 71323200

約数和(自身を除く): 42804200

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 79, 95, 100, 125, 152, 158, 190, 200, 250, 316, 361, 380, 395, 475, 500, 632, 722, 760, 790, 950, 1000, 1444, 1501, 1580, 1805, 1900, 1975, 2375, 2888, 3002, 3160, 3610, 3800, 3950, 4750, 6004, 7220, 7505, 7900, 9025, 9500, 9875, 12008, 14440, 15010, 15800, 18050, 19000, 19750, 28519, 30020, 36100, 37525, 39500, 45125, 57038, 60040, 72200, 75050, 79000, 90250, 114076, 142595, 150100, 180500, 187625, 228152, 285190, 300200, 361000, 375250, 570380, 712975, 750500, 1140760, 1425950, 1501000, 2851900, 3564875, 5703800, 7129750, 14259500, 28519000]

約数ペア:

[(1, 28519000), (2, 14259500), (4, 7129750), (5, 5703800), (8, 3564875), (10, 2851900), (19, 1501000), (20, 1425950), (25, 1140760), (38, 750500), (40, 712975), (50, 570380), (76, 375250), (79, 361000), (95, 300200), (100, 285190), (125, 228152), (152, 187625), (158, 180500), (190, 150100), (200, 142595), (250, 114076), (316, 90250), (361, 79000), (380, 75050), (395, 72200), (475, 60040), (500, 57038), (632, 45125), (722, 39500), (760, 37525), (790, 36100), (950, 30020), (1000, 28519), (1444, 19750), (1501, 19000), (1580, 18050), (1805, 15800), (1900, 15010), (1975, 14440), (2375, 12008), (2888, 9875), (3002, 9500), (3160, 9025), (3610, 7900), (3800, 7505), (3950, 7220), (4750, 6004)]