126640280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{243539}}^1$

素因数の和:243563

約数の個数: 32

約数和(自身を含む): 306860400

約数和(自身を除く): 180220120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 243539, 487078, 974156, 1217695, 1948312, 2435390, 3166007, 4870780, 6332014, 9741560, 12664028, 15830035, 25328056, 31660070, 63320140, 126640280]

約数ペア:

[(1, 126640280), (2, 63320140), (4, 31660070), (5, 25328056), (8, 15830035), (10, 12664028), (13, 9741560), (20, 6332014), (26, 4870780), (40, 3166007), (52, 2435390), (65, 1948312), (104, 1217695), (130, 974156), (260, 487078), (520, 243539)]