20974620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{15199}}^1$

素因数の和:15234

約数の個数: 48

約数和(自身を含む): 61286400

約数和(自身を除く): 40311780

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 690, 1380, 15199, 30398, 45597, 60796, 75995, 91194, 151990, 182388, 227985, 303980, 349577, 455970, 699154, 911940, 1048731, 1398308, 1747885, 2097462, 3495770, 4194924, 5243655, 6991540, 10487310, 20974620]

約数ペア:

[(1, 20974620), (2, 10487310), (3, 6991540), (4, 5243655), (5, 4194924), (6, 3495770), (10, 2097462), (12, 1747885), (15, 1398308), (20, 1048731), (23, 911940), (30, 699154), (46, 455970), (60, 349577), (69, 303980), (92, 227985), (115, 182388), (138, 151990), (230, 91194), (276, 75995), (345, 60796), (460, 45597), (690, 30398), (1380, 15199)]