84788780

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{69499}}^1$

素因数の和:69569

約数の個数: 24

約数和(自身を含む): 180978000

約数和(自身を除く): 96189220

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 69499, 138998, 277996, 347495, 694990, 1389980, 4239439, 8478878, 16957756, 21197195, 42394390, 84788780]

約数ペア:

[(1, 84788780), (2, 42394390), (4, 21197195), (5, 16957756), (10, 8478878), (20, 4239439), (61, 1389980), (122, 694990), (244, 347495), (305, 277996), (610, 138998), (1220, 69499)]