19507280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{18757}}^1$

素因数の和:18783

約数の個数: 40

約数和(自身を含む): 48845832

約数和(自身を除く): 29338552

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 18757, 37514, 75028, 93785, 150056, 187570, 243841, 300112, 375140, 487682, 750280, 975364, 1219205, 1500560, 1950728, 2438410, 3901456, 4876820, 9753640, 19507280]

約数ペア:

[(1, 19507280), (2, 9753640), (4, 4876820), (5, 3901456), (8, 2438410), (10, 1950728), (13, 1500560), (16, 1219205), (20, 975364), (26, 750280), (40, 487682), (52, 375140), (65, 300112), (80, 243841), (104, 187570), (130, 150056), (208, 93785), (260, 75028), (520, 37514), (1040, 18757)]