20709540

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{38351}}^1$

素因数の和:38369

約数の個数: 48

約数和(自身を含む): 64431360

約数和(自身を除く): 43721820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 38351, 76702, 115053, 153404, 191755, 230106, 345159, 383510, 460212, 575265, 690318, 767020, 1035477, 1150530, 1380636, 1725795, 2070954, 2301060, 3451590, 4141908, 5177385, 6903180, 10354770, 20709540]

約数ペア:

[(1, 20709540), (2, 10354770), (3, 6903180), (4, 5177385), (5, 4141908), (6, 3451590), (9, 2301060), (10, 2070954), (12, 1725795), (15, 1380636), (18, 1150530), (20, 1035477), (27, 767020), (30, 690318), (36, 575265), (45, 460212), (54, 383510), (60, 345159), (90, 230106), (108, 191755), (135, 153404), (180, 115053), (270, 76702), (540, 38351)]