2820015

素因数分解:

$3^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1$

素因数の和:242

約数の個数: 48

約数和(自身を含む): 5556096

約数和(自身を除く): 2736081

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 81, 99, 135, 165, 211, 243, 297, 405, 495, 633, 891, 1055, 1215, 1485, 1899, 2321, 2673, 3165, 4455, 5697, 6963, 9495, 11605, 13365, 17091, 20889, 28485, 34815, 51273, 62667, 85455, 104445, 188001, 256365, 313335, 564003, 940005, 2820015]

約数ペア:

[(1, 2820015), (3, 940005), (5, 564003), (9, 313335), (11, 256365), (15, 188001), (27, 104445), (33, 85455), (45, 62667), (55, 51273), (81, 34815), (99, 28485), (135, 20889), (165, 17091), (211, 13365), (243, 11605), (297, 9495), (405, 6963), (495, 5697), (633, 4455), (891, 3165), (1055, 2673), (1215, 2321), (1485, 1899)]