81009540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23687}}^1$

素因数の和:23721

約数の個数: 72

約数和(自身を含む): 258672960

約数和(自身を除く): 177663420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 23687, 47374, 71061, 94748, 118435, 142122, 213183, 236870, 284244, 355305, 426366, 450053, 473740, 710610, 852732, 900106, 1065915, 1350159, 1421220, 1800212, 2131830, 2250265, 2700318, 4050477, 4263660, 4500530, 5400636, 6750795, 8100954, 9001060, 13501590, 16201908, 20252385, 27003180, 40504770, 81009540]

約数ペア:

[(1, 81009540), (2, 40504770), (3, 27003180), (4, 20252385), (5, 16201908), (6, 13501590), (9, 9001060), (10, 8100954), (12, 6750795), (15, 5400636), (18, 4500530), (19, 4263660), (20, 4050477), (30, 2700318), (36, 2250265), (38, 2131830), (45, 1800212), (57, 1421220), (60, 1350159), (76, 1065915), (90, 900106), (95, 852732), (114, 710610), (171, 473740), (180, 450053), (190, 426366), (228, 355305), (285, 284244), (342, 236870), (380, 213183), (570, 142122), (684, 118435), (855, 94748), (1140, 71061), (1710, 47374), (3420, 23687)]