64742680

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{30539}}^1$

素因数の和:30603

約数の個数: 32

約数和(自身を含む): 148424400

約数和(自身を除く): 83681720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 30539, 61078, 122156, 152695, 244312, 305390, 610780, 1221560, 1618567, 3237134, 6474268, 8092835, 12948536, 16185670, 32371340, 64742680]

約数ペア:

[(1, 64742680), (2, 32371340), (4, 16185670), (5, 12948536), (8, 8092835), (10, 6474268), (20, 3237134), (40, 1618567), (53, 1221560), (106, 610780), (212, 305390), (265, 244312), (424, 152695), (530, 122156), (1060, 61078), (2120, 30539)]