2906540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1597}}^1$

素因数の和:1626

約数の個数: 48

約数和(自身を含む): 7516992

約数和(自身を除く): 4610452

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1597, 1820, 3194, 6388, 7985, 11179, 15970, 20761, 22358, 31940, 41522, 44716, 55895, 83044, 103805, 111790, 145327, 207610, 223580, 290654, 415220, 581308, 726635, 1453270, 2906540]

約数ペア:

[(1, 2906540), (2, 1453270), (4, 726635), (5, 581308), (7, 415220), (10, 290654), (13, 223580), (14, 207610), (20, 145327), (26, 111790), (28, 103805), (35, 83044), (52, 55895), (65, 44716), (70, 41522), (91, 31940), (130, 22358), (140, 20761), (182, 15970), (260, 11179), (364, 7985), (455, 6388), (910, 3194), (1597, 1820)]