51564840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{431}}^1\times {\mathrm{997}}^1$

素因数の和:1442

約数の個数: 64

約数和(自身を含む): 155208960

約数和(自身を除く): 103644120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 431, 862, 997, 1293, 1724, 1994, 2155, 2586, 2991, 3448, 3988, 4310, 4985, 5172, 5982, 6465, 7976, 8620, 9970, 10344, 11964, 12930, 14955, 17240, 19940, 23928, 25860, 29910, 39880, 51720, 59820, 119640, 429707, 859414, 1289121, 1718828, 2148535, 2578242, 3437656, 4297070, 5156484, 6445605, 8594140, 10312968, 12891210, 17188280, 25782420, 51564840]

約数ペア:

[(1, 51564840), (2, 25782420), (3, 17188280), (4, 12891210), (5, 10312968), (6, 8594140), (8, 6445605), (10, 5156484), (12, 4297070), (15, 3437656), (20, 2578242), (24, 2148535), (30, 1718828), (40, 1289121), (60, 859414), (120, 429707), (431, 119640), (862, 59820), (997, 51720), (1293, 39880), (1724, 29910), (1994, 25860), (2155, 23928), (2586, 19940), (2991, 17240), (3448, 14955), (3988, 12930), (4310, 11964), (4985, 10344), (5172, 9970), (5982, 8620), (6465, 7976)]