280972620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{21383}}^1$

素因数の和:21471

約数の個数: 72

約数和(自身を含む): 863999136

約数和(自身を除く): 583026516

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 73, 90, 146, 180, 219, 292, 365, 438, 657, 730, 876, 1095, 1314, 1460, 2190, 2628, 3285, 4380, 6570, 13140, 21383, 42766, 64149, 85532, 106915, 128298, 192447, 213830, 256596, 320745, 384894, 427660, 641490, 769788, 962235, 1282980, 1560959, 1924470, 3121918, 3848940, 4682877, 6243836, 7804795, 9365754, 14048631, 15609590, 18731508, 23414385, 28097262, 31219180, 46828770, 56194524, 70243155, 93657540, 140486310, 280972620]

約数ペア:

[(1, 280972620), (2, 140486310), (3, 93657540), (4, 70243155), (5, 56194524), (6, 46828770), (9, 31219180), (10, 28097262), (12, 23414385), (15, 18731508), (18, 15609590), (20, 14048631), (30, 9365754), (36, 7804795), (45, 6243836), (60, 4682877), (73, 3848940), (90, 3121918), (146, 1924470), (180, 1560959), (219, 1282980), (292, 962235), (365, 769788), (438, 641490), (657, 427660), (730, 384894), (876, 320745), (1095, 256596), (1314, 213830), (1460, 192447), (2190, 128298), (2628, 106915), (3285, 85532), (4380, 64149), (6570, 42766), (13140, 21383)]