1979820

素因数分解:

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

素因数の和:679

約数の個数: 72

約数和(自身を含む): 6368544

約数和(自身を除く): 4388724

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 85, 90, 102, 153, 170, 180, 204, 255, 306, 340, 510, 612, 647, 765, 1020, 1294, 1530, 1941, 2588, 3060, 3235, 3882, 5823, 6470, 7764, 9705, 10999, 11646, 12940, 19410, 21998, 23292, 29115, 32997, 38820, 43996, 54995, 58230, 65994, 98991, 109990, 116460, 131988, 164985, 197982, 219980, 329970, 395964, 494955, 659940, 989910, 1979820]

約数ペア:

[(1, 1979820), (2, 989910), (3, 659940), (4, 494955), (5, 395964), (6, 329970), (9, 219980), (10, 197982), (12, 164985), (15, 131988), (17, 116460), (18, 109990), (20, 98991), (30, 65994), (34, 58230), (36, 54995), (45, 43996), (51, 38820), (60, 32997), (68, 29115), (85, 23292), (90, 21998), (102, 19410), (153, 12940), (170, 11646), (180, 10999), (204, 9705), (255, 7764), (306, 6470), (340, 5823), (510, 3882), (612, 3235), (647, 3060), (765, 2588), (1020, 1941), (1294, 1530)]