61649840

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{15727}}^1$

素因数の和:15754

約数の個数: 60

約数和(自身を含む): 166748256

約数和(自身を除く): 105098416

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 15727, 31454, 62908, 78635, 110089, 125816, 157270, 220178, 251632, 314540, 440356, 550445, 629080, 770623, 880712, 1100890, 1258160, 1541246, 1761424, 2201780, 3082492, 3853115, 4403560, 6164984, 7706230, 8807120, 12329968, 15412460, 30824920, 61649840]

約数ペア:

[(1, 61649840), (2, 30824920), (4, 15412460), (5, 12329968), (7, 8807120), (8, 7706230), (10, 6164984), (14, 4403560), (16, 3853115), (20, 3082492), (28, 2201780), (35, 1761424), (40, 1541246), (49, 1258160), (56, 1100890), (70, 880712), (80, 770623), (98, 629080), (112, 550445), (140, 440356), (196, 314540), (245, 251632), (280, 220178), (392, 157270), (490, 125816), (560, 110089), (784, 78635), (980, 62908), (1960, 31454), (3920, 15727)]