281229780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{360551}}^1$

素因数の和:360576

約数の個数: 48

約数和(自身を含む): 848018304

約数和(自身を除く): 566788524

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, 360551, 721102, 1081653, 1442204, 1802755, 2163306, 3605510, 4326612, 4687163, 5408265, 7211020, 9374326, 10816530, 14061489, 18748652, 21633060, 23435815, 28122978, 46871630, 56245956, 70307445, 93743260, 140614890, 281229780]

約数ペア:

[(1, 281229780), (2, 140614890), (3, 93743260), (4, 70307445), (5, 56245956), (6, 46871630), (10, 28122978), (12, 23435815), (13, 21633060), (15, 18748652), (20, 14061489), (26, 10816530), (30, 9374326), (39, 7211020), (52, 5408265), (60, 4687163), (65, 4326612), (78, 3605510), (130, 2163306), (156, 1802755), (195, 1442204), (260, 1081653), (390, 721102), (780, 360551)]