20753640

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{57649}}^1$

素因数の和:57666

約数の個数: 48

約数和(自身を含む): 67450500

約数和(自身を除く): 46696860

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 57649, 115298, 172947, 230596, 288245, 345894, 461192, 518841, 576490, 691788, 864735, 1037682, 1152980, 1383576, 1729470, 2075364, 2305960, 2594205, 3458940, 4150728, 5188410, 6917880, 10376820, 20753640]

約数ペア:

[(1, 20753640), (2, 10376820), (3, 6917880), (4, 5188410), (5, 4150728), (6, 3458940), (8, 2594205), (9, 2305960), (10, 2075364), (12, 1729470), (15, 1383576), (18, 1152980), (20, 1037682), (24, 864735), (30, 691788), (36, 576490), (40, 518841), (45, 461192), (60, 345894), (72, 288245), (90, 230596), (120, 172947), (180, 115298), (360, 57649)]