54249940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{367}}^1\times {\mathrm{389}}^1$

素因数の和:784

約数の個数: 48

約数和(自身を含む): 120556800

約数和(自身を除く): 66306860

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 367, 380, 389, 734, 778, 1468, 1556, 1835, 1945, 3670, 3890, 6973, 7340, 7391, 7780, 13946, 14782, 27892, 29564, 34865, 36955, 69730, 73910, 139460, 142763, 147820, 285526, 571052, 713815, 1427630, 2712497, 2855260, 5424994, 10849988, 13562485, 27124970, 54249940]

約数ペア:

[(1, 54249940), (2, 27124970), (4, 13562485), (5, 10849988), (10, 5424994), (19, 2855260), (20, 2712497), (38, 1427630), (76, 713815), (95, 571052), (190, 285526), (367, 147820), (380, 142763), (389, 139460), (734, 73910), (778, 69730), (1468, 36955), (1556, 34865), (1835, 29564), (1945, 27892), (3670, 14782), (3890, 13946), (6973, 7780), (7340, 7391)]