989910

素因数分解:

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

素因数の和:677

約数の個数: 48

約数和(自身を含む): 2729376

約数和(自身を除く): 1739466

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 30, 34, 45, 51, 85, 90, 102, 153, 170, 255, 306, 510, 647, 765, 1294, 1530, 1941, 3235, 3882, 5823, 6470, 9705, 10999, 11646, 19410, 21998, 29115, 32997, 54995, 58230, 65994, 98991, 109990, 164985, 197982, 329970, 494955, 989910]

約数ペア:

[(1, 989910), (2, 494955), (3, 329970), (5, 197982), (6, 164985), (9, 109990), (10, 98991), (15, 65994), (17, 58230), (18, 54995), (30, 32997), (34, 29115), (45, 21998), (51, 19410), (85, 11646), (90, 10999), (102, 9705), (153, 6470), (170, 5823), (255, 3882), (306, 3235), (510, 1941), (647, 1530), (765, 1294)]