2154780225

素因数分解:

$3^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{81853}}^1$

素因数の和:81888

約数の個数: 60

約数和(自身を含む): 4298480956

約数和(自身を除く): 2143700731

約数列:

[1, 3, 5, 9, 13, 15, 25, 27, 39, 45, 65, 75, 81, 117, 135, 195, 225, 325, 351, 405, 585, 675, 975, 1053, 1755, 2025, 2925, 5265, 8775, 26325, 81853, 245559, 409265, 736677, 1064089, 1227795, 2046325, 2210031, 3192267, 3683385, 5320445, 6138975, 6630093, 9576801, 11050155, 15961335, 18416925, 26602225, 28730403, 33150465, 47884005, 55250775, 79806675, 86191209, 143652015, 165752325, 239420025, 430956045, 718260075, 2154780225]

約数ペア:

[(1, 2154780225), (3, 718260075), (5, 430956045), (9, 239420025), (13, 165752325), (15, 143652015), (25, 86191209), (27, 79806675), (39, 55250775), (45, 47884005), (65, 33150465), (75, 28730403), (81, 26602225), (117, 18416925), (135, 15961335), (195, 11050155), (225, 9576801), (325, 6630093), (351, 6138975), (405, 5320445), (585, 3683385), (675, 3192267), (975, 2210031), (1053, 2046325), (1755, 1227795), (2025, 1064089), (2925, 736677), (5265, 409265), (8775, 245559), (26325, 81853)]