16511000

素因数分解:

$2^3\times 5^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1$

素因数の和:130

約数の個数: 128

約数和(自身を含む): 44928000

約数和(自身を除く): 28417000

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 25, 38, 40, 44, 50, 55, 76, 79, 88, 95, 100, 110, 125, 152, 158, 190, 200, 209, 220, 250, 275, 316, 380, 395, 418, 440, 475, 500, 550, 632, 760, 790, 836, 869, 950, 1000, 1045, 1100, 1375, 1501, 1580, 1672, 1738, 1900, 1975, 2090, 2200, 2375, 2750, 3002, 3160, 3476, 3800, 3950, 4180, 4345, 4750, 5225, 5500, 6004, 6952, 7505, 7900, 8360, 8690, 9500, 9875, 10450, 11000, 12008, 15010, 15800, 16511, 17380, 19000, 19750, 20900, 21725, 26125, 30020, 33022, 34760, 37525, 39500, 41800, 43450, 52250, 60040, 66044, 75050, 79000, 82555, 86900, 104500, 108625, 132088, 150100, 165110, 173800, 187625, 209000, 217250, 300200, 330220, 375250, 412775, 434500, 660440, 750500, 825550, 869000, 1501000, 1651100, 2063875, 3302200, 4127750, 8255500, 16511000]

約数ペア:

[(1, 16511000), (2, 8255500), (4, 4127750), (5, 3302200), (8, 2063875), (10, 1651100), (11, 1501000), (19, 869000), (20, 825550), (22, 750500), (25, 660440), (38, 434500), (40, 412775), (44, 375250), (50, 330220), (55, 300200), (76, 217250), (79, 209000), (88, 187625), (95, 173800), (100, 165110), (110, 150100), (125, 132088), (152, 108625), (158, 104500), (190, 86900), (200, 82555), (209, 79000), (220, 75050), (250, 66044), (275, 60040), (316, 52250), (380, 43450), (395, 41800), (418, 39500), (440, 37525), (475, 34760), (500, 33022), (550, 30020), (632, 26125), (760, 21725), (790, 20900), (836, 19750), (869, 19000), (950, 17380), (1000, 16511), (1045, 15800), (1100, 15010), (1375, 12008), (1501, 11000), (1580, 10450), (1672, 9875), (1738, 9500), (1900, 8690), (1975, 8360), (2090, 7900), (2200, 7505), (2375, 6952), (2750, 6004), (3002, 5500), (3160, 5225), (3476, 4750), (3800, 4345), (3950, 4180)]