669645

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{647}}^1$

素因数の和:681

約数の個数: 24

約数和(自身を含む): 1213056

約数和(自身を除く): 543411

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 647, 1035, 1941, 3235, 5823, 9705, 14881, 29115, 44643, 74405, 133929, 223215, 669645]

約数ペア:

[(1, 669645), (3, 223215), (5, 133929), (9, 74405), (15, 44643), (23, 29115), (45, 14881), (69, 9705), (115, 5823), (207, 3235), (345, 1941), (647, 1035)]