311907860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{13007}}^1$

素因数の和:13136

約数の個数: 48

約数和(自身を含む): 721163520

約数和(自身を除く): 409255660

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 109, 110, 218, 220, 436, 545, 1090, 1199, 2180, 2398, 4796, 5995, 11990, 13007, 23980, 26014, 52028, 65035, 130070, 143077, 260140, 286154, 572308, 715385, 1417763, 1430770, 2835526, 2861540, 5671052, 7088815, 14177630, 15595393, 28355260, 31190786, 62381572, 77976965, 155953930, 311907860]

約数ペア:

[(1, 311907860), (2, 155953930), (4, 77976965), (5, 62381572), (10, 31190786), (11, 28355260), (20, 15595393), (22, 14177630), (44, 7088815), (55, 5671052), (109, 2861540), (110, 2835526), (218, 1430770), (220, 1417763), (436, 715385), (545, 572308), (1090, 286154), (1199, 260140), (2180, 143077), (2398, 130070), (4796, 65035), (5995, 52028), (11990, 26014), (13007, 23980)]