20882970

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{13649}}^1$

素因数の和:13679

約数の個数: 48

約数和(自身を含む): 57493800

約数和(自身を除く): 36610830

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, 765, 1530, 13649, 27298, 40947, 68245, 81894, 122841, 136490, 204735, 232033, 245682, 409470, 464066, 614205, 696099, 1160165, 1228410, 1392198, 2088297, 2320330, 3480495, 4176594, 6960990, 10441485, 20882970]

約数ペア:

[(1, 20882970), (2, 10441485), (3, 6960990), (5, 4176594), (6, 3480495), (9, 2320330), (10, 2088297), (15, 1392198), (17, 1228410), (18, 1160165), (30, 696099), (34, 614205), (45, 464066), (51, 409470), (85, 245682), (90, 232033), (102, 204735), (153, 136490), (170, 122841), (255, 81894), (306, 68245), (510, 40947), (765, 27298), (1530, 13649)]