81257580

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{50159}}^1$

素因数の和:50180

約数の個数: 60

約数和(自身を含む): 254913120

約数和(自身を除く): 173655540

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, 50159, 100318, 150477, 200636, 250795, 300954, 451431, 501590, 601908, 752385, 902862, 1003180, 1354293, 1504770, 1805724, 2257155, 2708586, 3009540, 4062879, 4514310, 5417172, 6771465, 8125758, 9028620, 13542930, 16251516, 20314395, 27085860, 40628790, 81257580]

約数ペア:

[(1, 81257580), (2, 40628790), (3, 27085860), (4, 20314395), (5, 16251516), (6, 13542930), (9, 9028620), (10, 8125758), (12, 6771465), (15, 5417172), (18, 4514310), (20, 4062879), (27, 3009540), (30, 2708586), (36, 2257155), (45, 1805724), (54, 1504770), (60, 1354293), (81, 1003180), (90, 902862), (108, 752385), (135, 601908), (162, 501590), (180, 451431), (270, 300954), (324, 250795), (405, 200636), (540, 150477), (810, 100318), (1620, 50159)]