1388679560

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{631}}^1\times {\mathrm{1487}}^1$

素因数の和:2166

約数の個数: 64

約数和(自身を含む): 3216222720

約数和(自身を除く): 1827543160

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 631, 740, 1262, 1480, 1487, 2524, 2974, 3155, 5048, 5948, 6310, 7435, 11896, 12620, 14870, 23347, 25240, 29740, 46694, 55019, 59480, 93388, 110038, 116735, 186776, 220076, 233470, 275095, 440152, 466940, 550190, 933880, 938297, 1100380, 1876594, 2200760, 3753188, 4691485, 7506376, 9382970, 18765940, 34716989, 37531880, 69433978, 138867956, 173584945, 277735912, 347169890, 694339780, 1388679560]

約数ペア:

[(1, 1388679560), (2, 694339780), (4, 347169890), (5, 277735912), (8, 173584945), (10, 138867956), (20, 69433978), (37, 37531880), (40, 34716989), (74, 18765940), (148, 9382970), (185, 7506376), (296, 4691485), (370, 3753188), (631, 2200760), (740, 1876594), (1262, 1100380), (1480, 938297), (1487, 933880), (2524, 550190), (2974, 466940), (3155, 440152), (5048, 275095), (5948, 233470), (6310, 220076), (7435, 186776), (11896, 116735), (12620, 110038), (14870, 93388), (23347, 59480), (25240, 55019), (29740, 46694)]