777660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{997}}^1$

素因数の和:1022

約数の個数: 48

約数和(自身を含む): 2347296

約数和(自身を除く): 1569636

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 997, 1994, 2991, 3988, 4985, 5982, 9970, 11964, 12961, 14955, 19940, 25922, 29910, 38883, 51844, 59820, 64805, 77766, 129610, 155532, 194415, 259220, 388830, 777660]

約数ペア:

[(1, 777660), (2, 388830), (3, 259220), (4, 194415), (5, 155532), (6, 129610), (10, 77766), (12, 64805), (13, 59820), (15, 51844), (20, 38883), (26, 29910), (30, 25922), (39, 19940), (52, 14955), (60, 12961), (65, 11964), (78, 9970), (130, 5982), (156, 4985), (195, 3988), (260, 2991), (390, 1994), (780, 997)]