1990877940

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{1228937}}^1$

素因数の和:1228958

約数の個数: 60

約数和(自身を含む): 6245462916

約数和(自身を除く): 4254584976

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 1228937, 2457874, 3686811, 4915748, 6144685, 7373622, 11060433, 12289370, 14747244, 18434055, 22120866, 24578740, 33181299, 36868110, 44241732, 55302165, 66362598, 73736220, 99543897, 110604330, 132725196, 165906495, 199087794, 221208660, 331812990, 398175588, 497719485, 663625980, 995438970, 1990877940]

約数ペア:

[(1, 1990877940), (2, 995438970), (3, 663625980), (4, 497719485), (5, 398175588), (6, 331812990), (9, 221208660), (10, 199087794), (12, 165906495), (15, 132725196), (18, 110604330), (20, 99543897), (27, 73736220), (30, 66362598), (36, 55302165), (45, 44241732), (54, 36868110), (60, 33181299), (81, 24578740), (90, 22120866), (108, 18434055), (135, 14747244), (162, 12289370), (180, 11060433), (270, 7373622), (324, 6144685), (405, 4915748), (540, 3686811), (810, 2457874), (1620, 1228937)]