20903940

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{38711}}^1$

素因数の和:38729

約数の個数: 48

約数和(自身を含む): 65036160

約数和(自身を除く): 44132220

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, 38711, 77422, 116133, 154844, 193555, 232266, 348399, 387110, 464532, 580665, 696798, 774220, 1045197, 1161330, 1393596, 1741995, 2090394, 2322660, 3483990, 4180788, 5225985, 6967980, 10451970, 20903940]

約数ペア:

[(1, 20903940), (2, 10451970), (3, 6967980), (4, 5225985), (5, 4180788), (6, 3483990), (9, 2322660), (10, 2090394), (12, 1741995), (15, 1393596), (18, 1161330), (20, 1045197), (27, 774220), (30, 696798), (36, 580665), (45, 464532), (54, 387110), (60, 348399), (90, 232266), (108, 193555), (135, 154844), (180, 116133), (270, 77422), (540, 38711)]