1288739820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{156781}}^1$

素因数の和:156930

約数の個数: 48

約数和(自身を含む): 3634833888

約数和(自身を除く): 2346094068

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 137, 274, 411, 548, 685, 822, 1370, 1644, 2055, 2740, 4110, 8220, 156781, 313562, 470343, 627124, 783905, 940686, 1567810, 1881372, 2351715, 3135620, 4703430, 9406860, 21478997, 42957994, 64436991, 85915988, 107394985, 128873982, 214789970, 257747964, 322184955, 429579940, 644369910, 1288739820]

約数ペア:

[(1, 1288739820), (2, 644369910), (3, 429579940), (4, 322184955), (5, 257747964), (6, 214789970), (10, 128873982), (12, 107394985), (15, 85915988), (20, 64436991), (30, 42957994), (60, 21478997), (137, 9406860), (274, 4703430), (411, 3135620), (548, 2351715), (685, 1881372), (822, 1567810), (1370, 940686), (1644, 783905), (2055, 627124), (2740, 470343), (4110, 313562), (8220, 156781)]