659940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{647}}^1$

素因数の和:676

約数の個数: 48

約数和(自身を含む): 1959552

約数和(自身を除く): 1299612

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 647, 1020, 1294, 1941, 2588, 3235, 3882, 6470, 7764, 9705, 10999, 12940, 19410, 21998, 32997, 38820, 43996, 54995, 65994, 109990, 131988, 164985, 219980, 329970, 659940]

約数ペア:

[(1, 659940), (2, 329970), (3, 219980), (4, 164985), (5, 131988), (6, 109990), (10, 65994), (12, 54995), (15, 43996), (17, 38820), (20, 32997), (30, 21998), (34, 19410), (51, 12940), (60, 10999), (68, 9705), (85, 7764), (102, 6470), (170, 3882), (204, 3235), (255, 2588), (340, 1941), (510, 1294), (647, 1020)]