427840

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{191}}^1$

素因数の和:215

約数の個数: 56

約数和(自身を含む): 1170432

約数和(自身を除く): 742592

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 160, 191, 224, 280, 320, 382, 448, 560, 764, 955, 1120, 1337, 1528, 1910, 2240, 2674, 3056, 3820, 5348, 6112, 6685, 7640, 10696, 12224, 13370, 15280, 21392, 26740, 30560, 42784, 53480, 61120, 85568, 106960, 213920, 427840]

約数ペア:

[(1, 427840), (2, 213920), (4, 106960), (5, 85568), (7, 61120), (8, 53480), (10, 42784), (14, 30560), (16, 26740), (20, 21392), (28, 15280), (32, 13370), (35, 12224), (40, 10696), (56, 7640), (64, 6685), (70, 6112), (80, 5348), (112, 3820), (140, 3056), (160, 2674), (191, 2240), (224, 1910), (280, 1528), (320, 1337), (382, 1120), (448, 955), (560, 764)]