1320880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1$

素因数の和:122

約数の個数: 80

約数和(自身を含む): 3571200

約数和(自身を除く): 2250320

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 38, 40, 44, 55, 76, 79, 80, 88, 95, 110, 152, 158, 176, 190, 209, 220, 304, 316, 380, 395, 418, 440, 632, 760, 790, 836, 869, 880, 1045, 1264, 1501, 1520, 1580, 1672, 1738, 2090, 3002, 3160, 3344, 3476, 4180, 4345, 6004, 6320, 6952, 7505, 8360, 8690, 12008, 13904, 15010, 16511, 16720, 17380, 24016, 30020, 33022, 34760, 60040, 66044, 69520, 82555, 120080, 132088, 165110, 264176, 330220, 660440, 1320880]

約数ペア:

[(1, 1320880), (2, 660440), (4, 330220), (5, 264176), (8, 165110), (10, 132088), (11, 120080), (16, 82555), (19, 69520), (20, 66044), (22, 60040), (38, 34760), (40, 33022), (44, 30020), (55, 24016), (76, 17380), (79, 16720), (80, 16511), (88, 15010), (95, 13904), (110, 12008), (152, 8690), (158, 8360), (176, 7505), (190, 6952), (209, 6320), (220, 6004), (304, 4345), (316, 4180), (380, 3476), (395, 3344), (418, 3160), (440, 3002), (632, 2090), (760, 1738), (790, 1672), (836, 1580), (869, 1520), (880, 1501), (1045, 1264)]