291220280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{560039}}^1$

素因数の和:560063

約数の個数: 32

約数和(自身を含む): 705650400

約数和(自身を除く): 414430120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 560039, 1120078, 2240156, 2800195, 4480312, 5600390, 7280507, 11200780, 14561014, 22401560, 29122028, 36402535, 58244056, 72805070, 145610140, 291220280]

約数ペア:

[(1, 291220280), (2, 145610140), (4, 72805070), (5, 58244056), (8, 36402535), (10, 29122028), (13, 22401560), (20, 14561014), (26, 11200780), (40, 7280507), (52, 5600390), (65, 4480312), (104, 2800195), (130, 2240156), (260, 1120078), (520, 560039)]