20280618

素因数分解:

$2^1\times 3^4\times {\mathrm{23}}^1\times {\mathrm{5443}}^1$

素因数の和:5480

約数の個数: 40

約数和(自身を含む): 47428128

約数和(自身を除く): 27147510

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 46, 54, 69, 81, 138, 162, 207, 414, 621, 1242, 1863, 3726, 5443, 10886, 16329, 32658, 48987, 97974, 125189, 146961, 250378, 293922, 375567, 440883, 751134, 881766, 1126701, 2253402, 3380103, 6760206, 10140309, 20280618]

約数ペア:

[(1, 20280618), (2, 10140309), (3, 6760206), (6, 3380103), (9, 2253402), (18, 1126701), (23, 881766), (27, 751134), (46, 440883), (54, 375567), (69, 293922), (81, 250378), (138, 146961), (162, 125189), (207, 97974), (414, 48987), (621, 32658), (1242, 16329), (1863, 10886), (3726, 5443)]