280365488

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43481}}^1$

素因数の和:43533

約数の個数: 40

約数和(自身を含む): 603878016

約数和(自身を除く): 323512528

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 208, 248, 403, 496, 806, 1612, 3224, 6448, 43481, 86962, 173924, 347848, 565253, 695696, 1130506, 1347911, 2261012, 2695822, 4522024, 5391644, 9044048, 10783288, 17522843, 21566576, 35045686, 70091372, 140182744, 280365488]

約数ペア:

[(1, 280365488), (2, 140182744), (4, 70091372), (8, 35045686), (13, 21566576), (16, 17522843), (26, 10783288), (31, 9044048), (52, 5391644), (62, 4522024), (104, 2695822), (124, 2261012), (208, 1347911), (248, 1130506), (403, 695696), (496, 565253), (806, 347848), (1612, 173924), (3224, 86962), (6448, 43481)]