19884280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{38239}}^1$

素因数の和:38263

約数の個数: 32

約数和(自身を含む): 48182400

約数和(自身を除く): 28298120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 38239, 76478, 152956, 191195, 305912, 382390, 497107, 764780, 994214, 1529560, 1988428, 2485535, 3976856, 4971070, 9942140, 19884280]

約数ペア:

[(1, 19884280), (2, 9942140), (4, 4971070), (5, 3976856), (8, 2485535), (10, 1988428), (13, 1529560), (20, 994214), (26, 764780), (40, 497107), (52, 382390), (65, 305912), (104, 191195), (130, 152956), (260, 76478), (520, 38239)]